I am developing a customer care chat bot to resolve basic queries of customer for my e-commerce site. My order id is 13 digit long. To read queries like 

"Please check my order status with id 9876566765432"

api.ai is unable to understand that it is order id. I have set entity type @sys.number. It is able to identify smaller number like 343434 etc. I have tried with @sys.number-integer, @sys.number-sequence but not working for long numbers. Pleas advise...
If you are using the enterprise edition you can use @sys.number-sequence.
Unable to read very large number in api.ai as parameter