68256507807 has 36 divisors (see below), whose sum is σ = 102845903160. Its totient is φ = 43618470336.

The previous prime is 68256507799. The next prime is 68256507829. The reversal of 68256507807 is 70870565286.

68256507807 is a `hidden beast` number, since 6 + 8 + 2 + 56 + 507 + 80 + 7 = 666.

It is not a de Polignac number, because 68256507807 - 2³ = 68256507799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68256503807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1019653 + ... + 1084529.

Almost surely, 2^68256507807 is an apocalyptic number.

68256507807 is a deficient number, since it is larger than the sum of its proper divisors (34589395353).

68256507807 is a wasteful number, since it uses less digits than its factorization.

68256507807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65080 (or 65048 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 68256507807 in words is "sixty-eight billion, two hundred fifty-six million, five hundred seven thousand, eight hundred seven".