18848449688 has 16 divisors (see below), whose sum is σ = 35417511360. Its totient is φ = 9403780000.

The previous prime is 18848449679. The next prime is 18848449703. The reversal of 18848449688 is 88694484881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551688 + ... + 2559063.

It is an arithmetic number, because the mean of its divisors is an integer number (2213594460).

Almost surely, 2^18848449688 is an apocalyptic number.

It is an amenable number.

18848449688 is a deficient number, since it is larger than the sum of its proper divisors (16569061672).

18848449688 is a wasteful number, since it uses less digits than its factorization.

18848449688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111218 (or 5111214 counting only the distinct ones).

The product of its digits is 113246208, while the sum is 68.

The spelling of 18848449688 in words is "eighteen billion, eight hundred forty-eight million, four hundred forty-nine thousand, six hundred eighty-eight".