256927223039 has 2 divisors, whose sum is σ = 256927223040. Its totient is φ = 256927223038.

The previous prime is 256927223017. The next prime is 256927223051. The reversal of 256927223039 is 930322729652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256927223039 - 2¹² = 256927218943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256927223239) 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 as a sum of consecutive naturals, namely, 128463611519 + 128463611520.

It is an arithmetic number, because the mean of its divisors is an integer number (128463611520).

Almost surely, 2^256927223039 is an apocalyptic number.

256927223039 is a deficient number, since it is larger than the sum of its proper divisors (1).

256927223039 is an equidigital number, since it uses as much as digits as its factorization.

256927223039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 256927223039 in words is "two hundred fifty-six billion, nine hundred twenty-seven million, two hundred twenty-three thousand, thirty-nine".