18072152832 has 288 divisors, whose sum is σ = 51572899840. Its totient is φ = 5608673280.

The previous prime is 18072152827. The next prime is 18072152849. The reversal of 18072152832 is 23825127081.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 130015419 + ... + 130015557.

Almost surely, 2^18072152832 is an apocalyptic number.

18072152832 is a gapful number since it is divisible by the number (12) 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 18072152832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25786449920).

18072152832 is an abundant number, since it is smaller than the sum of its proper divisors (33500747008).

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

18072152832 is a wasteful number, since it uses less digits than its factorization.

18072152832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 18072152832 in words is "eighteen billion, seventy-two million, one hundred fifty-two thousand, eight hundred thirty-two".