68056915507 has 24 divisors (see below), whose sum is σ = 84339637776. Its totient is φ = 54566120448.

The previous prime is 68056915477. The next prime is 68056915523. The reversal of 68056915507 is 70551965086.

68056915507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 68056915507 - 2¹¹ = 68056913459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68056915007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114838 + ... + 386395.

It is an arithmetic number, because the mean of its divisors is an integer number (3514151574).

Almost surely, 2^68056915507 is an apocalyptic number.

68056915507 is a deficient number, since it is larger than the sum of its proper divisors (16282722269).

68056915507 is a wasteful number, since it uses less digits than its factorization.

68056915507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501427 (or 501420 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 52.

The spelling of 68056915507 in words is "sixty-eight billion, fifty-six million, nine hundred fifteen thousand, five hundred seven".