256412245584 has 40 divisors (see below), whose sum is σ = 722616329952. Its totient is φ = 77700680320.

The previous prime is 256412245549. The next prime is 256412245601. The reversal of 256412245584 is 485542214652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 242814099 + ... + 242815154.

Almost surely, 2^256412245584 is an apocalyptic number.

256412245584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256412245584 is an abundant number, since it is smaller than the sum of its proper divisors (466204084368).

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

256412245584 is a wasteful number, since it uses less digits than its factorization.

256412245584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485629275 (or 485629269 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 48.

The spelling of 256412245584 in words is "two hundred fifty-six billion, four hundred twelve million, two hundred forty-five thousand, five hundred eighty-four".