67988972574 has 24 divisors (see below), whose sum is σ = 149174120160. Its totient is φ = 22376117088.

The previous prime is 67988972551. The next prime is 67988972659. The reversal of 67988972574 is 47527988976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23904687 + ... + 23907530.

It is an arithmetic number, because the mean of its divisors is an integer number (6215588340).

Almost surely, 2^67988972574 is an apocalyptic number.

67988972574 is an abundant number, since it is smaller than the sum of its proper divisors (81185147586).

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

67988972574 is a wasteful number, since it uses less digits than its factorization.

67988972574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47812304 (or 47812301 counting only the distinct ones).

The product of its digits is 426746880, while the sum is 72.

The spelling of 67988972574 in words is "sixty-seven billion, nine hundred eighty-eight million, nine hundred seventy-two thousand, five hundred seventy-four".