256588454047 has 2 divisors, whose sum is σ = 256588454048. Its totient is φ = 256588454046.

The previous prime is 256588454033. The next prime is 256588454069. The reversal of 256588454047 is 740454885652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256588454047 - 2²³ = 256580065439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256588453982 and 256588454000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256588454027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128294227023 + 128294227024.

It is an arithmetic number, because the mean of its divisors is an integer number (128294227024).

Almost surely, 2^256588454047 is an apocalyptic number.

256588454047 is a deficient number, since it is larger than the sum of its proper divisors (1).

256588454047 is an equidigital number, since it uses as much as digits as its factorization.

256588454047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008000, while the sum is 58.

The spelling of 256588454047 in words is "two hundred fifty-six billion, five hundred eighty-eight million, four hundred fifty-four thousand, forty-seven".