72752137464 has 32 divisors (see below), whose sum is σ = 187747453440. Its totient is φ = 23468431200.

The previous prime is 72752137459. The next prime is 72752137481. The reversal of 72752137464 is 46473125727.

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 in 7 ways as a sum of consecutive naturals, for example, 48891822 + ... + 48893309.

It is an arithmetic number, because the mean of its divisors is an integer number (5867107920).

Almost surely, 2^72752137464 is an apocalyptic number.

It is an amenable number.

72752137464 is an abundant number, since it is smaller than the sum of its proper divisors (114995315976).

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

72752137464 is a wasteful number, since it uses less digits than its factorization.

72752137464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97785171 (or 97785167 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 48.

The spelling of 72752137464 in words is "seventy-two billion, seven hundred fifty-two million, one hundred thirty-seven thousand, four hundred sixty-four".