68207605256 has 32 divisors (see below), whose sum is σ = 149142000000. Its totient is φ = 29231829648.

The previous prime is 68207605247. The next prime is 68207605273. The reversal of 68207605256 is 65250670286.

It is a self number, because there is not a number n which added to its sum of digits gives 68207605256.

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, 12425756 + ... + 12431243.

It is an arithmetic number, because the mean of its divisors is an integer number (4660687500).

Almost surely, 2^68207605256 is an apocalyptic number.

It is an amenable number.

68207605256 is an abundant number, since it is smaller than the sum of its proper divisors (80934394744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68207605256 is a wasteful number, since it uses less digits than its factorization.

68207605256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24857026 (or 24857008 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 68207605256 in words is "sixty-eight billion, two hundred seven million, six hundred five thousand, two hundred fifty-six".