72887569538 has 8 divisors (see below), whose sum is σ = 124950119232. Its totient is φ = 31237529796.

The previous prime is 72887569537. The next prime is 72887569541. The reversal of 72887569538 is 83596578827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72887569537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2603127470 + ... + 2603127497.

It is an arithmetic number, because the mean of its divisors is an integer number (15618764904).

Almost surely, 2^72887569538 is an apocalyptic number.

72887569538 is a deficient number, since it is larger than the sum of its proper divisors (52062549694).

72887569538 is a wasteful number, since it uses less digits than its factorization.

72887569538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206254976.

The product of its digits is 203212800, while the sum is 68.

The spelling of 72887569538 in words is "seventy-two billion, eight hundred eighty-seven million, five hundred sixty-nine thousand, five hundred thirty-eight".