72197408696 has 64 divisors (see below), whose sum is σ = 158152824000. Its totient is φ = 30885542016.

The previous prime is 72197408669. The next prime is 72197408707. The reversal of 72197408696 is 69680479127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504790 + ... + 1552026.

It is an arithmetic number, because the mean of its divisors is an integer number (2471137875).

Almost surely, 2^72197408696 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 72197408696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79076412000).

72197408696 is an abundant number, since it is smaller than the sum of its proper divisors (85955415304).

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

72197408696 is a wasteful number, since it uses less digits than its factorization.

72197408696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47821 (or 47803 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 72197408696 in words is "seventy-two billion, one hundred ninety-seven million, four hundred eight thousand, six hundred ninety-six".