256754624724255 has 48 divisors (see below), whose sum is σ = 488991437218944. Its totient is φ = 114643925444160.

The previous prime is 256754624724251. The next prime is 256754624724329. The reversal of 256754624724255 is 552427426457652.

It is not a de Polignac number, because 256754624724255 - 2² = 256754624724251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256754624724251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4061898861 + ... + 4061962070.

It is an arithmetic number, because the mean of its divisors is an integer number (10187321608728).

Almost surely, 2^{256754624724255} is an apocalyptic number.

256754624724255 is a deficient number, since it is larger than the sum of its proper divisors (232236812494689).

256754624724255 is a wasteful number, since it uses less digits than its factorization.

256754624724255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123860996 (or 8123860989 counting only the distinct ones).

The product of its digits is 1128960000, while the sum is 66.

The spelling of 256754624724255 in words is "two hundred fifty-six trillion, seven hundred fifty-four billion, six hundred twenty-four million, seven hundred twenty-four thousand, two hundred fifty-five".