18184339368 has 96 divisors (see below), whose sum is σ = 53195961000. Its totient is φ = 5578481664.

The previous prime is 18184339247. The next prime is 18184339477. The reversal of 18184339368 is 86393348181.

18184339368 is a `hidden beast` number, since 18 + 184 + 3 + 393 + 68 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16114271364 + 2070068004 = 126942^2 + 45498^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286608 + ... + 344256.

Almost surely, 2^18184339368 is an apocalyptic number.

18184339368 is a gapful number since it is divisible by the number (18) 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 18184339368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26597980500).

18184339368 is an abundant number, since it is smaller than the sum of its proper divisors (35011621632).

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

18184339368 is a wasteful number, since it uses less digits than its factorization.

18184339368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58011 (or 58004 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 18184339368 in words is "eighteen billion, one hundred eighty-four million, three hundred thirty-nine thousand, three hundred sixty-eight".