256631751070476 has 48 divisors (see below), whose sum is σ = 599541057329760. Its totient is φ = 85439157903360.

The previous prime is 256631751070463. The next prime is 256631751070483. The reversal of 256631751070476 is 674070157136652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41452906 + ... + 47239886.

It is an arithmetic number, because the mean of its divisors is an integer number (12490438694370).

Almost surely, 2^{256631751070476} is an apocalyptic number.

It is an amenable number.

256631751070476 is an abundant number, since it is smaller than the sum of its proper divisors (342909306259284).

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

256631751070476 is a wasteful number, since it uses less digits than its factorization.

256631751070476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5791514 (or 5791512 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 60.

The spelling of 256631751070476 in words is "two hundred fifty-six trillion, six hundred thirty-one billion, seven hundred fifty-one million, seventy thousand, four hundred seventy-six".