72865882680 has 64 divisors (see below), whose sum is σ = 218744992800. Its totient is φ = 19417804800.

The previous prime is 72865882591. The next prime is 72865882693. The reversal of 72865882680 is 8628856827.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 25221 + ... + 382580.

Almost surely, 2^72865882680 is an apocalyptic number.

It is an amenable number.

72865882680 is an abundant number, since it is smaller than the sum of its proper divisors (145879110120).

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

72865882680 is a wasteful number, since it uses less digits than its factorization.

72865882680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409304 (or 409300 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 72865882680 in words is "seventy-two billion, eight hundred sixty-five million, eight hundred eighty-two thousand, six hundred eighty".