corporate/other corporate/other includes global staff functions ( includes finance , risk , human resources , legal and compliance ) and other corporate expense , global operations and technology ( o&t ) , residual corporate treasury and corporate items .at december 31 , 2009 , this segment had approximately $ 230 billion of assets , consisting primarily of the company 2019s liquidity portfolio , including $ 110 billion of cash and cash equivalents. . in millions of dollars                                             | 2009               | 2008             | 2007            
net interest revenue                                               | $ -1663 ( 1663 )   | $ -2680 ( 2680 ) | $ -2008 ( 2008 )
non-interest revenue                                               | -8893 ( 8893 )     | 422              | -302 ( 302 )    
total revenues net of interest expense                             | $ -10556 ( 10556 ) | $ -2258 ( 2258 ) | $ -2310 ( 2310 )
total operating expenses                                           | $ 1420             | $ 510            | $ 1813          
provisions for loan losses and for benefits and claims             | -1 ( 1 )           | 1                | -3 ( 3 )        
( loss ) from continuing operations before taxes                   | $ -11975 ( 11975 ) | $ -2769 ( 2769 ) | $ -4120 ( 4120 )
income taxes ( benefits )                                          | -4369 ( 4369 )     | -587 ( 587 )     | -1446 ( 1446 )  
( loss ) from continuing operations                                | $ -7606 ( 7606 )   | $ -2182 ( 2182 ) | $ -2674 ( 2674 )
income ( loss ) from discontinued operations net of taxes          | -445 ( 445 )       | 4002             | 708             
net income ( loss ) before attribution of noncontrolling interests | $ -8051 ( 8051 )   | $ 1820           | $ -1966 ( 1966 )
net income attributable to noncontrolling interests                | 2014               | 2014             | 2               
net income ( loss )                                                | $ -8051 ( 8051 )   | $ 1820           | $ -1968 ( 1968 ) 2009 vs .2008 revenues , net of interest expense declined , primarily due to the pretax loss on debt extinguishment related to the repayment of the $ 20 billion of tarp trust preferred securities and the pretax loss in connection with the exit from the loss-sharing agreement with the u.s .government .revenues also declined , due to the absence of the 2008 sale of citigroup global services limited recorded in o&t .this was partially offset by a pretax gain related to the exchange offers , revenues and higher intersegment eliminations .operating expenses increased , primarily due to intersegment eliminations and increases in compensation , partially offset by lower repositioning reserves .2008 vs .2007 revenues , net of interest expense increased primarily due to the gain in 2007 on the sale of certain corporate-owned assets and higher intersegment eliminations , partially offset by improved treasury hedging activities .operating expenses declined , primarily due to lower restructuring charges in 2008 as well as reductions in incentive compensation and benefits expense. .
Question: what are the total operating expenses in 2009?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
corporate/other corporate/other includes global staff functions ( includes finance , risk , human resources , legal and compliance ) and other corporate expense , global operations and technology ( o&t ) , residual corporate treasury and corporate items .at december 31 , 2009 , this segment had approximately $ 230 billion of assets , consisting primarily of the company 2019s liquidity portfolio , including $ 110 billion of cash and cash equivalents. . in millions of dollars                                             | 2009               | 2008             | 2007            
net interest revenue                                               | $ -1663 ( 1663 )   | $ -2680 ( 2680 ) | $ -2008 ( 2008 )
non-interest revenue                                               | -8893 ( 8893 )     | 422              | -302 ( 302 )    
total revenues net of interest expense                             | $ -10556 ( 10556 ) | $ -2258 ( 2258 ) | $ -2310 ( 2310 )
total operating expenses                                           | $ 1420             | $ 510            | $ 1813          
provisions for loan losses and for benefits and claims             | -1 ( 1 )           | 1                | -3 ( 3 )        
( loss ) from continuing operations before taxes                   | $ -11975 ( 11975 ) | $ -2769 ( 2769 ) | $ -4120 ( 4120 )
income taxes ( benefits )                                          | -4369 ( 4369 )     | -587 ( 587 )     | -1446 ( 1446 )  
( loss ) from continuing operations                                | $ -7606 ( 7606 )   | $ -2182 ( 2182 ) | $ -2674 ( 2674 )
income ( loss ) from discontinued operations net of taxes          | -445 ( 445 )       | 4002             | 708             
net income ( loss ) before attribution of noncontrolling interests | $ -8051 ( 8051 )   | $ 1820           | $ -1966 ( 1966 )
net income attributable to noncontrolling interests                | 2014               | 2014             | 2               
net income ( loss )                                                | $ -8051 ( 8051 )   | $ 1820           | $ -1968 ( 1968 ) 2009 vs .2008 revenues , net of interest expense declined , primarily due to the pretax loss on debt extinguishment related to the repayment of the $ 20 billion of tarp trust preferred securities and the pretax loss in connection with the exit from the loss-sharing agreement with the u.s .government .revenues also declined , due to the absence of the 2008 sale of citigroup global services limited recorded in o&t .this was partially offset by a pretax gain related to the exchange offers , revenues and higher intersegment eliminations .operating expenses increased , primarily due to intersegment eliminations and increases in compensation , partially offset by lower repositioning reserves .2008 vs .2007 revenues , net of interest expense increased primarily due to the gain in 2007 on the sale of certain corporate-owned assets and higher intersegment eliminations , partially offset by improved treasury hedging activities .operating expenses declined , primarily due to lower restructuring charges in 2008 as well as reductions in incentive compensation and benefits expense. .
Question: what are the total operating expenses in 2009?
