68601979945 has 16 divisors (see below), whose sum is σ = 89976642048. Its totient is φ = 49987019520.

The previous prime is 68601979867. The next prime is 68601979961. The reversal of 68601979945 is 54997910686.

It is not a de Polignac number, because 68601979945 - 2²⁷ = 68467762217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13014819 + ... + 13020088.

It is an arithmetic number, because the mean of its divisors is an integer number (5623540128).

Almost surely, 2^68601979945 is an apocalyptic number.

It is an amenable number.

68601979945 is a deficient number, since it is larger than the sum of its proper divisors (21374662103).

68601979945 is a wasteful number, since it uses less digits than its factorization.

68601979945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26034960.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 68601979945 in words is "sixty-eight billion, six hundred one million, nine hundred seventy-nine thousand, nine hundred forty-five".