
    Given a loan applicant's current credit score, determine the next possible higher credit score threshold that could be achieved through potential financial activities by rearranging the digits of their current score. The new score must be the smallest possible number greater than the current score that can be formed using exactly the same digits, which helps in assessing the closest achievable improved risk category.
    

    
def rearrange_bigger(n):
    """
    Given a loan applicant's current credit score, determine the next possible higher credit score threshold that could be achieved through potential financial activities by rearranging the digits of their current score. The new score must be the smallest possible number greater than the current score that can be formed using exactly the same digits, which helps in assessing the closest achievable improved risk category.
    

    """
def rearrange_bigger(n):
    """
    Given a loan applicant's current credit score, determine the next possible higher credit score threshold that could be achieved through potential financial activities by rearranging the digits of their current score. The new score must be the smallest possible number greater than the current score that can be formed using exactly the same digits, which helps in assessing the closest achievable improved risk category.
    

    """
    nums = list(str(n))
    for i in range(len(nums) - 2, -1, -1):
        if nums[i] < nums[i + 1]:
            z = nums[i:]
            y = min(filter(lambda x: x > z[0], z))
            z.remove(y)
            z.sort()
            nums[i:] = [y] + z
            return int(''.join(nums))
    return False