18318676992 has 352 divisors, whose sum is σ = 62324173824. Its totient is φ = 4644864000.

The previous prime is 18318676979. The next prime is 18318677011. The reversal of 18318676992 is 29967681381.

It is a tau number, because it is divible by the number of its divisors (352).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10170492 + ... + 10172292.

It is an arithmetic number, because the mean of its divisors is an integer number (177057312).

Almost surely, 2^18318676992 is an apocalyptic number.

18318676992 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 18318676992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31162086912).

18318676992 is an abundant number, since it is smaller than the sum of its proper divisors (44005496832).

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

18318676992 is a wasteful number, since it uses less digits than its factorization.

18318676992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1867 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The spelling of 18318676992 in words is "eighteen billion, three hundred eighteen million, six hundred seventy-six thousand, nine hundred ninety-two".