72696790824 has 96 divisors (see below), whose sum is σ = 211520378880. Its totient is φ = 20760074496.

The previous prime is 72696790807. The next prime is 72696790867. The reversal of 72696790824 is 42809769627.

It is a super-2 number, since 2×72696790824² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2498649 + ... + 2527575.

It is an arithmetic number, because the mean of its divisors is an integer number (2203337280).

Almost surely, 2^72696790824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72696790824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105760189440).

72696790824 is an abundant number, since it is smaller than the sum of its proper divisors (138823588056).

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

72696790824 is a wasteful number, since it uses less digits than its factorization.

72696790824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31087 (or 31076 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 72696790824 in words is "seventy-two billion, six hundred ninety-six million, seven hundred ninety thousand, eight hundred twenty-four".