18044882492 has 144 divisors (see below), whose sum is σ = 42016998240. Its totient is φ = 6697893888.

The previous prime is 18044882489. The next prime is 18044882497. The reversal of 18044882492 is 29428844081.

It is a self number, because there is not a number n which added to its sum of digits gives 18044882492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18044882497) 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 47 ways as a sum of consecutive naturals, for example, 26812268 + ... + 26812940.

It is an arithmetic number, because the mean of its divisors is an integer number (291784710).

Almost surely, 2^18044882492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18044882492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21008499120).

18044882492 is an abundant number, since it is smaller than the sum of its proper divisors (23972115748).

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

18044882492 is a wasteful number, since it uses less digits than its factorization.

18044882492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 18044882492 in words is "eighteen billion, forty-four million, eight hundred eighty-two thousand, four hundred ninety-two".