18004180992 has 288 divisors, whose sum is σ = 56908099584. Its totient is φ = 4954521600.

The previous prime is 18004180991. The next prime is 18004181021. The reversal of 18004180992 is 29908140081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18004180991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85327767 + ... + 85327977.

It is an arithmetic number, because the mean of its divisors is an integer number (197597568).

Almost surely, 2^18004180992 is an apocalyptic number.

18004180992 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 18004180992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28454049792).

18004180992 is an abundant number, since it is smaller than the sum of its proper divisors (38903918592).

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

18004180992 is an frugal number, since it uses more digits than its factorization.

18004180992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The spelling of 18004180992 in words is "eighteen billion, four million, one hundred eighty thousand, nine hundred ninety-two".