68059731972 has 12 divisors (see below), whose sum is σ = 158806041296. Its totient is φ = 22686577320.

The previous prime is 68059731959. The next prime is 68059731979. The reversal of 68059731972 is 27913795086.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×68059731972² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68059731979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2835822154 + ... + 2835822177.

Almost surely, 2^68059731972 is an apocalyptic number.

It is an amenable number.

68059731972 is an abundant number, since it is smaller than the sum of its proper divisors (90746309324).

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

68059731972 is a wasteful number, since it uses less digits than its factorization.

68059731972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671644338 (or 5671644336 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 68059731972 in words is "sixty-eight billion, fifty-nine million, seven hundred thirty-one thousand, nine hundred seventy-two".