72721080860 has 12 divisors (see below), whose sum is σ = 152714269848. Its totient is φ = 29088432336.

The previous prime is 72721080853. The next prime is 72721080899. The reversal of 72721080860 is 6808012727.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 1818027002 + ... + 1818027041.

It is an arithmetic number, because the mean of its divisors is an integer number (12726189154).

Almost surely, 2^72721080860 is an apocalyptic number.

It is an amenable number.

72721080860 is an abundant number, since it is smaller than the sum of its proper divisors (79993188988).

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

72721080860 is a wasteful number, since it uses less digits than its factorization.

72721080860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636054052 (or 3636054050 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 72721080860 in words is "seventy-two billion, seven hundred twenty-one million, eighty thousand, eight hundred sixty".