256970882939 has 2 divisors, whose sum is σ = 256970882940. Its totient is φ = 256970882938.

The previous prime is 256970882911. The next prime is 256970882953. The reversal of 256970882939 is 939288079652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256970882939 is a prime.

It is not a weakly prime, because it can be changed into another prime (256970882969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128485441469 + 128485441470.

It is an arithmetic number, because the mean of its divisors is an integer number (128485441470).

Almost surely, 2^256970882939 is an apocalyptic number.

256970882939 is a deficient number, since it is larger than the sum of its proper divisors (1).

256970882939 is an equidigital number, since it uses as much as digits as its factorization.

256970882939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 256970882939 in words is "two hundred fifty-six billion, nine hundred seventy million, eight hundred eighty-two thousand, nine hundred thirty-nine".