18774694308 has 96 divisors (see below), whose sum is σ = 45689011200. Its totient is φ = 5993253504.

The previous prime is 18774694261. The next prime is 18774694319. The reversal of 18774694308 is 80349647781.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37325185 + ... + 37325687.

It is an arithmetic number, because the mean of its divisors is an integer number (475927200).

Almost surely, 2^18774694308 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 18774694308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22844505600).

18774694308 is an abundant number, since it is smaller than the sum of its proper divisors (26914316892).

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

18774694308 is a wasteful number, since it uses less digits than its factorization.

18774694308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 18774694308 in words is "eighteen billion, seven hundred seventy-four million, six hundred ninety-four thousand, three hundred eight".