18908743104 has 42 divisors (see below), whose sum is σ = 54198499680. Its totient is φ = 6302914176.

The previous prime is 18908743093. The next prime is 18908743127. The reversal of 18908743104 is 40134780981.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18908743104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16413264 + ... + 16414415.

Almost surely, 2^18908743104 is an apocalyptic number.

It is an amenable number.

18908743104 is an abundant number, since it is smaller than the sum of its proper divisors (35289756576).

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

18908743104 is a wasteful number, since it uses less digits than its factorization.

18908743104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32827697 (or 32827684 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 18908743104 in words is "eighteen billion, nine hundred eight million, seven hundred forty-three thousand, one hundred four".