68911600872 has 16 divisors (see below), whose sum is σ = 172279002240. Its totient is φ = 22970533616.

The previous prime is 68911600847. The next prime is 68911600883. The reversal of 68911600872 is 27800611986.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435658328 + ... + 1435658375.

It is an arithmetic number, because the mean of its divisors is an integer number (10767437640).

Almost surely, 2^68911600872 is an apocalyptic number.

It is an amenable number.

68911600872 is an abundant number, since it is smaller than the sum of its proper divisors (103367401368).

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

68911600872 is a wasteful number, since it uses less digits than its factorization.

68911600872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871316712 (or 2871316708 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 68911600872 in words is "sixty-eight billion, nine hundred eleven million, six hundred thousand, eight hundred seventy-two".