256264521272 has 8 divisors (see below), whose sum is σ = 480495977400. Its totient is φ = 128132260632.

The previous prime is 256264521269. The next prime is 256264521329. The reversal of 256264521272 is 272125462652.

It is a happy number.

256264521272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16016532572 + ... + 16016532587.

It is an arithmetic number, because the mean of its divisors is an integer number (60061997175).

Almost surely, 2^256264521272 is an apocalyptic number.

It is an amenable number.

256264521272 is a deficient number, since it is larger than the sum of its proper divisors (224231456128).

256264521272 is a wasteful number, since it uses less digits than its factorization.

256264521272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32033065165 (or 32033065161 counting only the distinct ones).

The product of its digits is 806400, while the sum is 44.

The spelling of 256264521272 in words is "two hundred fifty-six billion, two hundred sixty-four million, five hundred twenty-one thousand, two hundred seventy-two".