72474864688 has 40 divisors (see below), whose sum is σ = 142025052672. Its totient is φ = 35824638528.

The previous prime is 72474864673. The next prime is 72474864701. The reversal of 72474864688 is 88646847427.

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 7 ways as a sum of consecutive naturals, for example, 790281 + ... + 877207.

Almost surely, 2^72474864688 is an apocalyptic number.

It is an amenable number.

72474864688 is a deficient number, since it is larger than the sum of its proper divisors (69550187984).

72474864688 is a wasteful number, since it uses less digits than its factorization.

72474864688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87529 (or 87523 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 64.

The spelling of 72474864688 in words is "seventy-two billion, four hundred seventy-four million, eight hundred sixty-four thousand, six hundred eighty-eight".