256984814368 has 24 divisors (see below), whose sum is σ = 506033740800. Its totient is φ = 128468308800.

The previous prime is 256984814347. The next prime is 256984814407. The reversal of 256984814368 is 863418489652.

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, 579168 + ... + 921631.

It is an arithmetic number, because the mean of its divisors is an integer number (21084739200).

Almost surely, 2^256984814368 is an apocalyptic number.

It is an amenable number.

256984814368 is a deficient number, since it is larger than the sum of its proper divisors (249048926432).

256984814368 is a wasteful number, since it uses less digits than its factorization.

256984814368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506160 (or 1506152 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 64.

The spelling of 256984814368 in words is "two hundred fifty-six billion, nine hundred eighty-four million, eight hundred fourteen thousand, three hundred sixty-eight".