256477623442313 has 16 divisors (see below), whose sum is σ = 329389322416896. Its totient is φ = 194104422135360.

The previous prime is 256477623442297. The next prime is 256477623442331. The reversal of 256477623442313 is 313244326774652.

It is a cyclic number.

It is not a de Polignac number, because 256477623442313 - 2⁴ = 256477623442297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256477623442813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61270333178 + ... + 61270337363.

It is an arithmetic number, because the mean of its divisors is an integer number (20586832651056).

Almost surely, 2^{256477623442313} is an apocalyptic number.

256477623442313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

256477623442313 is a deficient number, since it is larger than the sum of its proper divisors (72911698974583).

256477623442313 is a wasteful number, since it uses less digits than its factorization.

256477623442313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122540670584.

The product of its digits is 121927680, while the sum is 59.

The spelling of 256477623442313 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 thirteen".