72332257830 has 64 divisors (see below), whose sum is σ = 198592335360. Its totient is φ = 16516813824.

The previous prime is 72332257813. The next prime is 72332257843. The reversal of 72332257830 is 3875223327.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44982 + ... + 382998.

It is an arithmetic number, because the mean of its divisors is an integer number (3103005240).

Almost surely, 2^72332257830 is an apocalyptic number.

72332257830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72332257830 is an abundant number, since it is smaller than the sum of its proper divisors (126260077530).

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

72332257830 is a wasteful number, since it uses less digits than its factorization.

72332257830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339053.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 72332257830 in words is "seventy-two billion, three hundred thirty-two million, two hundred fifty-seven thousand, eight hundred thirty".