256454735559 has 32 divisors (see below), whose sum is σ = 398188431360. Its totient is φ = 145172815200.

The previous prime is 256454735527. The next prime is 256454735567. The reversal of 256454735559 is 955537454652.

It is not a de Polignac number, because 256454735559 - 2⁵ = 256454735527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256454735659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2835897 + ... + 2924930.

It is an arithmetic number, because the mean of its divisors is an integer number (12443388480).

Almost surely, 2^256454735559 is an apocalyptic number.

256454735559 is a deficient number, since it is larger than the sum of its proper divisors (141733695801).

256454735559 is a wasteful number, since it uses less digits than its factorization.

256454735559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760931.

The product of its digits is 113400000, while the sum is 60.

The spelling of 256454735559 in words is "two hundred fifty-six billion, four hundred fifty-four million, seven hundred thirty-five thousand, five hundred fifty-nine".