18338659248 has 240 divisors, whose sum is σ = 62474334720. Its totient is φ = 4581868032.

The previous prime is 18338659223. The next prime is 18338659319. The reversal of 18338659248 is 84295683381.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 565161 + ... + 596727.

It is an arithmetic number, because the mean of its divisors is an integer number (260309728).

Almost surely, 2^18338659248 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 18338659248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31237167360).

18338659248 is an abundant number, since it is smaller than the sum of its proper divisors (44135675472).

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

18338659248 is a wasteful number, since it uses less digits than its factorization.

18338659248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31624 (or 31611 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The spelling of 18338659248 in words is "eighteen billion, three hundred thirty-eight million, six hundred fifty-nine thousand, two hundred forty-eight".