8457313728 has 56 divisors (see below), whose sum is σ = 22386330640. Its totient is φ = 2817884160.

The previous prime is 8457313681. The next prime is 8457313789. The reversal of 8457313728 is 8273137548.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508098 + ... + 524478.

Almost surely, 2^8457313728 is an apocalyptic number.

It is an amenable number.

8457313728 is an abundant number, since it is smaller than the sum of its proper divisors (13929016912).

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

8457313728 is a wasteful number, since it uses less digits than its factorization.

8457313728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085 (or 19075 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 8457313728 is about 91963.6543858496. The cubic root of 8457313728 is about 2037.4055291263.

The spelling of 8457313728 in words is "eight billion, four hundred fifty-seven million, three hundred thirteen thousand, seven hundred twenty-eight".