68132372872 has 32 divisors (see below), whose sum is σ = 135376579800. Its totient is φ = 32089254400.

The previous prime is 68132372837. The next prime is 68132372887. The reversal of 68132372872 is 27827323186.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59777316036 + 8355056836 = 244494^2 + 91406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3571879 + ... + 3590902.

Almost surely, 2^68132372872 is an apocalyptic number.

It is an amenable number.

68132372872 is a deficient number, since it is larger than the sum of its proper divisors (67244206928).

68132372872 is a wasteful number, since it uses less digits than its factorization.

68132372872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162857 (or 7162853 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The spelling of 68132372872 in words is "sixty-eight billion, one hundred thirty-two million, three hundred seventy-two thousand, eight hundred seventy-two".