256568877924 has 24 divisors (see below), whose sum is σ = 599400738720. Its totient is φ = 85417241664.

The previous prime is 256568877883. The next prime is 256568877937. The reversal of 256568877924 is 429778865652.

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, 13204594 + ... + 13224009.

It is an arithmetic number, because the mean of its divisors is an integer number (24975030780).

Almost surely, 2^256568877924 is an apocalyptic number.

It is an amenable number.

256568877924 is an abundant number, since it is smaller than the sum of its proper divisors (342831860796).

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

256568877924 is a wasteful number, since it uses less digits than its factorization.

256568877924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26429419 (or 26429417 counting only the distinct ones).

The product of its digits is 406425600, while the sum is 69.

The spelling of 256568877924 in words is "two hundred fifty-six billion, five hundred sixty-eight million, eight hundred seventy-seven thousand, nine hundred twenty-four".