72018540700 has 36 divisors (see below), whose sum is σ = 163075031280. Its totient is φ = 27554919040.

The previous prime is 72018540697. The next prime is 72018540721. The reversal of 72018540700 is 704581027.

It is a happy number.

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, 15653905 + ... + 15658504.

It is an arithmetic number, because the mean of its divisors is an integer number (4529861980).

Almost surely, 2^72018540700 is an apocalyptic number.

It is an amenable number.

72018540700 is an abundant number, since it is smaller than the sum of its proper divisors (91056490580).

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

72018540700 is a wasteful number, since it uses less digits than its factorization.

72018540700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31312446 (or 31312439 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The spelling of 72018540700 in words is "seventy-two billion, eighteen million, five hundred forty thousand, seven hundred".