72589426568 has 16 divisors (see below), whose sum is σ = 136384658880. Its totient is φ = 36220184208.

The previous prime is 72589426537. The next prime is 72589426571. The reversal of 72589426568 is 86562498527.

It is a happy number.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72589426568.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9311996 + ... + 9319787.

It is an arithmetic number, because the mean of its divisors is an integer number (8524041180).

Almost surely, 2^72589426568 is an apocalyptic number.

It is an amenable number.

72589426568 is a deficient number, since it is larger than the sum of its proper divisors (63795232312).

72589426568 is a wasteful number, since it uses less digits than its factorization.

72589426568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18632276 (or 18632272 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 62.

The spelling of 72589426568 in words is "seventy-two billion, five hundred eighty-nine million, four hundred twenty-six thousand, five hundred sixty-eight".