18974189744 has 10 divisors (see below), whose sum is σ = 36762492660. Its totient is φ = 9487094864.

The previous prime is 18974189737. The next prime is 18974189749. The reversal of 18974189744 is 44798147981.

It is not an unprimeable number, because it can be changed into a prime (18974189749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592943414 + ... + 592943445.

It is an arithmetic number, because the mean of its divisors is an integer number (3676249266).

Almost surely, 2^18974189744 is an apocalyptic number.

It is an amenable number.

18974189744 is a deficient number, since it is larger than the sum of its proper divisors (17788302916).

18974189744 is a wasteful number, since it uses less digits than its factorization.

18974189744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185886867 (or 1185886861 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 62.

The spelling of 18974189744 in words is "eighteen billion, nine hundred seventy-four million, one hundred eighty-nine thousand, seven hundred forty-four".