72531624696 has 32 divisors (see below), whose sum is σ = 181413412560. Its totient is φ = 24165961472.

The previous prime is 72531624691. The next prime is 72531624719. The reversal of 72531624696 is 69642613527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72531624691) by changing a digit.

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, 650175 + ... + 753518.

Almost surely, 2^72531624696 is an apocalyptic number.

It is an amenable number.

72531624696 is an abundant number, since it is smaller than the sum of its proper divisors (108881787864).

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

72531624696 is a wasteful number, since it uses less digits than its factorization.

72531624696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405855 (or 1405851 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The spelling of 72531624696 in words is "seventy-two billion, five hundred thirty-one million, six hundred twenty-four thousand, six hundred ninety-six".