256949084812 has 24 divisors (see below), whose sum is σ = 518700962304. Its totient is φ = 109091866512.

The previous prime is 256949084803. The next prime is 256949084831. The reversal of 256949084812 is 218480949652.

It is a happy number.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

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, 42879028 + ... + 42885019.

It is an arithmetic number, because the mean of its divisors is an integer number (21612540096).

Almost surely, 2^256949084812 is an apocalyptic number.

It is an amenable number.

256949084812 is an abundant number, since it is smaller than the sum of its proper divisors (261751877492).

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

256949084812 is a wasteful number, since it uses less digits than its factorization.

256949084812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85764165 (or 85764163 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 58.

The spelling of 256949084812 in words is "two hundred fifty-six billion, nine hundred forty-nine million, eighty-four thousand, eight hundred twelve".