72351905880 has 64 divisors (see below), whose sum is σ = 217357862400. Its totient is φ = 19266984320.

The previous prime is 72351905831. The next prime is 72351905911. The reversal of 72351905880 is 8850915327.

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, 333006 + ... + 505565.

It is an arithmetic number, because the mean of its divisors is an integer number (3396216600).

Almost surely, 2^72351905880 is an apocalyptic number.

It is an amenable number.

72351905880 is an abundant number, since it is smaller than the sum of its proper divisors (145005956520).

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

72351905880 is a wasteful number, since it uses less digits than its factorization.

72351905880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839304 (or 839300 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 72351905880 in words is "seventy-two billion, three hundred fifty-one million, nine hundred five thousand, eight hundred eighty".