256477623442312 has 32 divisors (see below), whose sum is σ = 481971329235000. Its totient is φ = 127952151441408.

The previous prime is 256477623442297. The next prime is 256477623442331. The reversal of 256477623442312 is 213244326774652.

256477623442312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 151031957724036 + 105445665718276 = 12289506^2 + 10268674^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3976737 + ... + 22994992.

Almost surely, 2^{256477623442312} is an apocalyptic number.

It is an amenable number.

256477623442312 is a deficient number, since it is larger than the sum of its proper divisors (225493705792688).

256477623442312 is a wasteful number, since it uses less digits than its factorization.

256477623442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26974393 (or 26974389 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 58.

The spelling of 256477623442312 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, six hundred twenty-three million, four hundred forty-two thousand, three hundred twelve".