72127568974 has 4 divisors (see below), whose sum is σ = 108191353464. Its totient is φ = 36063784486.

The previous prime is 72127568951. The next prime is 72127568987. The reversal of 72127568974 is 47986572127.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18031892242 + ... + 18031892245.

It is an arithmetic number, because the mean of its divisors is an integer number (27047838366).

Almost surely, 2^72127568974 is an apocalyptic number.

72127568974 is a deficient number, since it is larger than the sum of its proper divisors (36063784490).

72127568974 is a wasteful number, since it uses less digits than its factorization.

72127568974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36063784489.

The product of its digits is 11854080, while the sum is 58.

The spelling of 72127568974 in words is "seventy-two billion, one hundred twenty-seven million, five hundred sixty-eight thousand, nine hundred seventy-four".