18941973182 has 16 divisors (see below), whose sum is σ = 31655446272. Its totient is φ = 8426796120.

The previous prime is 18941973179. The next prime is 18941973199. The reversal of 18941973182 is 28137914981.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 9158528 + ... + 9160595.

It is an arithmetic number, because the mean of its divisors is an integer number (1978465392).

Almost surely, 2^18941973182 is an apocalyptic number.

18941973182 is a deficient number, since it is larger than the sum of its proper divisors (12713473090).

18941973182 is a wasteful number, since it uses less digits than its factorization.

18941973182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18319183.

The product of its digits is 870912, while the sum is 53.

The spelling of 18941973182 in words is "eighteen billion, nine hundred forty-one million, nine hundred seventy-three thousand, one hundred eighty-two".