256928746718 has 16 divisors (see below), whose sum is σ = 451191946464. Its totient is φ = 107426653440.

The previous prime is 256928746717. The next prime is 256928746721. The reversal of 256928746718 is 817647829652.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256928746717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223804955 + ... + 223806102.

It is an arithmetic number, because the mean of its divisors is an integer number (28199496654).

Almost surely, 2^256928746718 is an apocalyptic number.

256928746718 is a deficient number, since it is larger than the sum of its proper divisors (194263199746).

256928746718 is a wasteful number, since it uses less digits than its factorization.

256928746718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447611107.

The product of its digits is 81285120, while the sum is 65.

The spelling of 256928746718 in words is "two hundred fifty-six billion, nine hundred twenty-eight million, seven hundred forty-six thousand, seven hundred eighteen".