56375993728 has 32 divisors (see below), whose sum is σ = 112342698000. Its totient is φ = 28180179456.

The previous prime is 56375993693. The next prime is 56375993753. The reversal of 56375993728 is 82739957365.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 56375993728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416818 + ... + 535246.

Almost surely, 2^56375993728 is an apocalyptic number.

It is an amenable number.

56375993728 is a deficient number, since it is larger than the sum of its proper divisors (55966704272).

56375993728 is a wasteful number, since it uses less digits than its factorization.

56375993728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122162 (or 122150 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 64.

The spelling of 56375993728 in words is "fifty-six billion, three hundred seventy-five million, nine hundred ninety-three thousand, seven hundred twenty-eight".