68250007720 has 64 divisors (see below), whose sum is σ = 160279741440. Its totient is φ = 26106432000.

The previous prime is 68250007703. The next prime is 68250007783. The reversal of 68250007720 is 2770005286.

It is a self number, because there is not a number n which added to its sum of digits gives 68250007720.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5183145 + ... + 5196295.

It is an arithmetic number, because the mean of its divisors is an integer number (2504370960).

Almost surely, 2^68250007720 is an apocalyptic number.

It is an amenable number.

68250007720 is an abundant number, since it is smaller than the sum of its proper divisors (92029733720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68250007720 is a wasteful number, since it uses less digits than its factorization.

68250007720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18826 (or 18822 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 68250007720 in words is "sixty-eight billion, two hundred fifty million, seven thousand, seven hundred twenty".