72885587568 has 40 divisors (see below), whose sum is σ = 199363521168. Its totient is φ = 22866066432.

The previous prime is 72885587557. The next prime is 72885587591. The reversal of 72885587568 is 86578558827.

It is a happy 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 in 7 ways as a sum of consecutive naturals, for example, 44659471 + ... + 44661102.

Almost surely, 2^72885587568 is an apocalyptic number.

It is an amenable number.

72885587568 is an abundant number, since it is smaller than the sum of its proper divisors (126477933600).

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

72885587568 is a wasteful number, since it uses less digits than its factorization.

72885587568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89320601 (or 89320595 counting only the distinct ones).

The product of its digits is 301056000, while the sum is 69.

The spelling of 72885587568 in words is "seventy-two billion, eight hundred eighty-five million, five hundred eighty-seven thousand, five hundred sixty-eight".