256970882951 has 16 divisors (see below), whose sum is σ = 271768670208. Its totient is φ = 242581598400.

The previous prime is 256970882939. The next prime is 256970882953. The reversal of 256970882951 is 159288079652.

It is a cyclic number.

It is not a de Polignac number, because 256970882951 - 2¹⁴ = 256970866567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256970882953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15578030 + ... + 15594516.

It is an arithmetic number, because the mean of its divisors is an integer number (16985541888).

Almost surely, 2^256970882951 is an apocalyptic number.

256970882951 is a deficient number, since it is larger than the sum of its proper divisors (14797787257).

256970882951 is a wasteful number, since it uses less digits than its factorization.

256970882951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28822.

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 256970882951 in words is "two hundred fifty-six billion, nine hundred seventy million, eight hundred eighty-two thousand, nine hundred fifty-one".