72502275900 has 144 divisors (see below), whose sum is σ = 214453961568. Its totient is φ = 18906240000.

The previous prime is 72502275887. The next prime is 72502275929. The reversal of 72502275900 is 957220527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3154450 + ... + 3177350.

It is an arithmetic number, because the mean of its divisors is an integer number (1489263622).

Almost surely, 2^72502275900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72502275900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107226980784).

72502275900 is an abundant number, since it is smaller than the sum of its proper divisors (141951685668).

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

72502275900 is a wasteful number, since it uses less digits than its factorization.

72502275900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23152 (or 23145 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 72502275900 in words is "seventy-two billion, five hundred two million, two hundred seventy-five thousand, nine hundred".