268679565256 has 32 divisors (see below), whose sum is σ = 508267837440. Its totient is φ = 133143671808.

The previous prime is 268679565251. The next prime is 268679565263. The reversal of 268679565256 is 652565976862.

It is a junction number, because it is equal to n+sod(n) for n = 268679565191 and 268679565200.

It is not an unprimeable number, because it can be changed into a prime (268679565251) 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, 845736 + ... + 1119208.

It is an arithmetic number, because the mean of its divisors is an integer number (15883369920).

Almost surely, 2^268679565256 is an apocalyptic number.

It is an amenable number.

268679565256 is a deficient number, since it is larger than the sum of its proper divisors (239588272184).

268679565256 is a wasteful number, since it uses less digits than its factorization.

268679565256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274573 (or 274569 counting only the distinct ones).

The product of its digits is 326592000, while the sum is 67.

The spelling of 268679565256 in words is "two hundred sixty-eight billion, six hundred seventy-nine million, five hundred sixty-five thousand, two hundred fifty-six".