68013542972 has 24 divisors (see below), whose sum is σ = 124364147712. Its totient is φ = 32484870000.

The previous prime is 68013542957. The next prime is 68013543047. The reversal of 68013542972 is 27924531086.

It is a pancake number, because a pancake can be divided into 68013542972 parts by 368818 straight cuts.

It is a congruent number.

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, 423104 + ... + 561287.

It is an arithmetic number, because the mean of its divisors is an integer number (5181839488).

It is a 2-persistent number, because it is pandigital, and so is 2⋅68013542972 = 136027085944, but 3⋅68013542972 = 204040628916 is not.

Almost surely, 2^68013542972 is an apocalyptic number.

It is an amenable number.

68013542972 is a deficient number, since it is larger than the sum of its proper divisors (56350604740).

68013542972 is a wasteful number, since it uses less digits than its factorization.

68013542972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985169 (or 985167 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 68013542972 in words is "sixty-eight billion, thirteen million, five hundred forty-two thousand, nine hundred seventy-two".