68907430872 has 96 divisors (see below), whose sum is σ = 224510457600. Its totient is φ = 18651632832.

The previous prime is 68907430841. The next prime is 68907430901. The reversal of 68907430872 is 27803470986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3588348 + ... + 3607499.

It is an arithmetic number, because the mean of its divisors is an integer number (2338650600).

Almost surely, 2^68907430872 is an apocalyptic number.

It is an amenable number.

68907430872 is an abundant number, since it is smaller than the sum of its proper divisors (155603026728).

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

68907430872 is a wasteful number, since it uses less digits than its factorization.

68907430872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195885 (or 7195878 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 68907430872 in words is "sixty-eight billion, nine hundred seven million, four hundred thirty thousand, eight hundred seventy-two".