256732793768 has 32 divisors (see below), whose sum is σ = 525154959360. Its totient is φ = 116692346880.

The previous prime is 256732793701. The next prime is 256732793771. The reversal of 256732793768 is 867397237652.

256732793768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 4012121 + ... + 4075607.

It is an arithmetic number, because the mean of its divisors is an integer number (16411092480).

Almost surely, 2^256732793768 is an apocalyptic number.

It is an amenable number.

256732793768 is an abundant number, since it is smaller than the sum of its proper divisors (268422165592).

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

256732793768 is a wasteful number, since it uses less digits than its factorization.

256732793768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109457 (or 109453 counting only the distinct ones).

The product of its digits is 160030080, while the sum is 65.

The spelling of 256732793768 in words is "two hundred fifty-six billion, seven hundred thirty-two million, seven hundred ninety-three thousand, seven hundred sixty-eight".