18204318000 has 640 divisors, whose sum is σ = 74930918400. Its totient is φ = 4178304000.

The previous prime is 18204317993. The next prime is 18204318007. The reversal of 18204318000 is 81340281.

It is an interprime number because it is at equal distance from previous prime (18204317993) and next prime (18204318007).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (18204318007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11285194 + ... + 11286806.

It is an arithmetic number, because the mean of its divisors is an integer number (117079560).

Almost surely, 2^18204318000 is an apocalyptic number.

18204318000 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 18204318000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37465459200).

18204318000 is an abundant number, since it is smaller than the sum of its proper divisors (56726600400).

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

18204318000 is a wasteful number, since it uses less digits than its factorization.

18204318000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 18204318000 its reverse (81340281), we get a palindrome (18285658281).

The spelling of 18204318000 in words is "eighteen billion, two hundred four million, three hundred eighteen thousand".