72150015800 has 48 divisors (see below), whose sum is σ = 167781839400. Its totient is φ = 28854320000.

The previous prime is 72150015739. The next prime is 72150015811. The reversal of 72150015800 is 851005127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1067411 + ... + 1132989.

Almost surely, 2^72150015800 is an apocalyptic number.

It is an amenable number.

72150015800 is an abundant number, since it is smaller than the sum of its proper divisors (95631823600).

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

72150015800 is a wasteful number, since it uses less digits than its factorization.

72150015800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71096 (or 71087 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The spelling of 72150015800 in words is "seventy-two billion, one hundred fifty million, fifteen thousand, eight hundred".