18089980982 has 8 divisors (see below), whose sum is σ = 27137283096. Its totient is φ = 9044219952.

The previous prime is 18089980981. The next prime is 18089981017. The reversal of 18089980982 is 28908998081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18089980981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355463 + ... + 403154.

It is an arithmetic number, because the mean of its divisors is an integer number (3392160387).

Almost surely, 2^18089980982 is an apocalyptic number.

18089980982 is a deficient number, since it is larger than the sum of its proper divisors (9047302114).

18089980982 is a wasteful number, since it uses less digits than its factorization.

18089980982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770542.

The product of its (nonzero) digits is 5971968, while the sum is 62.

The spelling of 18089980982 in words is "eighteen billion, eighty-nine million, nine hundred eighty thousand, nine hundred eighty-two".