18779373120 has 112 divisors (see below), whose sum is σ = 60182077248. Its totient is φ = 4961003520.

The previous prime is 18779373097. The next prime is 18779373149. The reversal of 18779373120 is 2137397781.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 18779373120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11310 + ... + 194130.

Almost surely, 2^18779373120 is an apocalyptic number.

18779373120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18779373120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30091038624).

18779373120 is an abundant number, since it is smaller than the sum of its proper divisors (41402704128).

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

18779373120 is a wasteful number, since it uses less digits than its factorization.

18779373120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182948 (or 182938 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 18779373120 in words is "eighteen billion, seven hundred seventy-nine million, three hundred seventy-three thousand, one hundred twenty".