72451313976 has 32 divisors (see below), whose sum is σ = 182140185600. Its totient is φ = 24015517920.

The previous prime is 72451313939. The next prime is 72451314073. The reversal of 72451313976 is 67931315427.

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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8428120 + ... + 8436711.

It is an arithmetic number, because the mean of its divisors is an integer number (5691880800).

Almost surely, 2^72451313976 is an apocalyptic number.

It is an amenable number.

72451313976 is an abundant number, since it is smaller than the sum of its proper divisors (109688871624).

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

72451313976 is a wasteful number, since it uses less digits than its factorization.

72451313976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16865019 (or 16865015 counting only the distinct ones).

The product of its digits is 952560, while the sum is 48.

The spelling of 72451313976 in words is "seventy-two billion, four hundred fifty-one million, three hundred thirteen thousand, nine hundred seventy-six".