72549896912 has 20 divisors (see below), whose sum is σ = 146676966240. Its totient is φ = 34697776608.

The previous prime is 72549896891. The next prime is 72549896977. The reversal of 72549896912 is 21969894527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98572862 + ... + 98573597.

It is an arithmetic number, because the mean of its divisors is an integer number (7333848312).

Almost surely, 2^72549896912 is an apocalyptic number.

It is an amenable number.

72549896912 is an abundant number, since it is smaller than the sum of its proper divisors (74127069328).

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

72549896912 is a wasteful number, since it uses less digits than its factorization.

72549896912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197146490 (or 197146484 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 62.

The spelling of 72549896912 in words is "seventy-two billion, five hundred forty-nine million, eight hundred ninety-six thousand, nine hundred twelve".