256354064404 has 12 divisors (see below), whose sum is σ = 459052627264. Its totient is φ = 125196170904.

The previous prime is 256354064389. The next prime is 256354064413. The reversal of 256354064404 is 404460453652.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 745215132 + ... + 745215475.

Almost surely, 2^256354064404 is an apocalyptic number.

It is an amenable number.

256354064404 is a deficient number, since it is larger than the sum of its proper divisors (202698562860).

256354064404 is a wasteful number, since it uses less digits than its factorization.

256354064404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490430654 (or 1490430652 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 256354064404 in words is "two hundred fifty-six billion, three hundred fifty-four million, sixty-four thousand, four hundred four".