72267503880 has 256 divisors, whose sum is σ = 269688787200. Its totient is φ = 15220408320.

The previous prime is 72267503821. The next prime is 72267503881. The reversal of 72267503880 is 8830576227.

It is not an unprimeable number, because it can be changed into a prime (72267503881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 167856 + ... + 415584.

It is an arithmetic number, because the mean of its divisors is an integer number (1053471825).

Almost surely, 2^72267503880 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 72267503880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134844393600).

72267503880 is an abundant number, since it is smaller than the sum of its proper divisors (197421283320).

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

72267503880 is a wasteful number, since it uses less digits than its factorization.

72267503880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247784 (or 247780 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 72267503880 in words is "seventy-two billion, two hundred sixty-seven million, five hundred three thousand, eight hundred eighty".