18974284845992 has 16 divisors (see below), whose sum is σ = 40659181812960. Its totient is φ = 8131836362544.

The previous prime is 18974284845977. The next prime is 18974284846037. The reversal of 18974284845992 is 29954848247981.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 169413257498 + ... + 169413257609.

It is an arithmetic number, because the mean of its divisors is an integer number (2541198863310).

Almost surely, 2^{18974284845992} is an apocalyptic number.

It is an amenable number.

18974284845992 is an abundant number, since it is smaller than the sum of its proper divisors (21684896966968).

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

18974284845992 is a wasteful number, since it uses less digits than its factorization.

18974284845992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338826515120 (or 338826515116 counting only the distinct ones).

The product of its digits is 3344302080, while the sum is 80.

The spelling of 18974284845992 in words is "eighteen trillion, nine hundred seventy-four billion, two hundred eighty-four million, eight hundred forty-five thousand, nine hundred ninety-two".