72988370564 has 12 divisors (see below), whose sum is σ = 128586895500. Its totient is φ = 36249257568.

The previous prime is 72988370563. The next prime is 72988370569. The reversal of 72988370564 is 46507388927.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18880958464 + 54107412100 = 137408^2 + 232610^2 .

It is not an unprimeable number, because it can be changed into a prime (72988370563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61231259 + ... + 61232450.

It is an arithmetic number, because the mean of its divisors is an integer number (10715574625).

Almost surely, 2^72988370564 is an apocalyptic number.

It is an amenable number.

72988370564 is a deficient number, since it is larger than the sum of its proper divisors (55598524936).

72988370564 is a wasteful number, since it uses less digits than its factorization.

72988370564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122463862 (or 122463860 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 72988370564 in words is "seventy-two billion, nine hundred eighty-eight million, three hundred seventy thousand, five hundred sixty-four".