18472531230720 has 2304 divisors, whose sum is σ = 81942176927520. Its totient is φ = 3966788173824.

The previous prime is 18472531230683. The next prime is 18472531230731. The reversal of 18472531230720 is 2703213527481.

18472531230720 is a `hidden beast` number, since 1 + 8 + 4 + 7 + 2 + 5 + 312 + 307 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33164328682 + ... + 33164329238.

Almost surely, 2^{18472531230720} is an apocalyptic number.

18472531230720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18472531230720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40971088463760).

18472531230720 is an abundant number, since it is smaller than the sum of its proper divisors (63469645696800).

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

18472531230720 is an frugal number, since it uses more digits than its factorization.

18472531230720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 18472531230720 in words is "eighteen trillion, four hundred seventy-two billion, five hundred thirty-one million, two hundred thirty thousand, seven hundred twenty".