72305843700 has 72 divisors (see below), whose sum is σ = 212634550240. Its totient is φ = 18965462400.

The previous prime is 72305843689. The next prime is 72305843767. The reversal of 72305843700 is 734850327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1957270 + ... + 1993869.

Almost surely, 2^72305843700 is an apocalyptic number.

It is an amenable number.

72305843700 is an abundant number, since it is smaller than the sum of its proper divisors (140328706540).

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

72305843700 is a wasteful number, since it uses less digits than its factorization.

72305843700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951217 (or 3951210 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 72305843700 in words is "seventy-two billion, three hundred five million, eight hundred forty-three thousand, seven hundred".