18244885108 has 6 divisors (see below), whose sum is σ = 31928548946. Its totient is φ = 9122442552.

The previous prime is 18244885031. The next prime is 18244885117. The reversal of 18244885108 is 80158844281.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17515993104 + 728892004 = 132348^2 + 26998^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2280610635 + ... + 2280610642.

Almost surely, 2^18244885108 is an apocalyptic number.

It is an amenable number.

18244885108 is a deficient number, since it is larger than the sum of its proper divisors (13683663838).

18244885108 is a wasteful number, since it uses less digits than its factorization.

18244885108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561221281 (or 4561221279 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 49.

The spelling of 18244885108 in words is "eighteen billion, two hundred forty-four million, eight hundred eighty-five thousand, one hundred eight".