71989572576 has 24 divisors (see below), whose sum is σ = 188972628264. Its totient is φ = 23996524160.

The previous prime is 71989572533. The next prime is 71989572623. The reversal of 71989572576 is 67527598917.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

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 3 ways as a sum of consecutive naturals, for example, 374945595 + ... + 374945786.

It is an arithmetic number, because the mean of its divisors is an integer number (7873859511).

Almost surely, 2^71989572576 is an apocalyptic number.

It is an amenable number.

71989572576 is an abundant number, since it is smaller than the sum of its proper divisors (116983055688).

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

71989572576 is a wasteful number, since it uses less digits than its factorization.

71989572576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749891394 (or 749891386 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 66.

The spelling of 71989572576 in words is "seventy-one billion, nine hundred eighty-nine million, five hundred seventy-two thousand, five hundred seventy-six".