18780824192 has 64 divisors (see below), whose sum is σ = 40649976360. Its totient is φ = 8591278080.

The previous prime is 18780824159. The next prime is 18780824207. The reversal of 18780824192 is 29142808781.

It can be written as a sum of positive squares in 4 ways, for example, as 13861765696 + 4919058496 = 117736^2 + 70136^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 18780824192.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138092 + ... + 237972.

Almost surely, 2^18780824192 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 18780824192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20324988180).

18780824192 is an abundant number, since it is smaller than the sum of its proper divisors (21869152168).

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

18780824192 is a wasteful number, since it uses less digits than its factorization.

18780824192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100021 (or 100009 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 18780824192 in words is "eighteen billion, seven hundred eighty million, eight hundred twenty-four thousand, one hundred ninety-two".