256904880974 has 32 divisors (see below), whose sum is σ = 466636743936. Its totient is φ = 103553942400.

The previous prime is 256904880961. The next prime is 256904880979. The reversal of 256904880974 is 479088409652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256904880979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26624 + ... + 717299.

It is an arithmetic number, because the mean of its divisors is an integer number (14582398248).

Almost surely, 2^256904880974 is an apocalyptic number.

256904880974 is a deficient number, since it is larger than the sum of its proper divisors (209731862962).

256904880974 is a wasteful number, since it uses less digits than its factorization.

256904880974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745400.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 256904880974 in words is "two hundred fifty-six billion, nine hundred four million, eight hundred eighty thousand, nine hundred seventy-four".