18200019982 has 8 divisors (see below), whose sum is σ = 27303669000. Its totient is φ = 9098796984.

The previous prime is 18200019979. The next prime is 18200020001. The reversal of 18200019982 is 28991000281.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587632 + ... + 617827.

It is an arithmetic number, because the mean of its divisors is an integer number (3412958625).

Almost surely, 2^18200019982 is an apocalyptic number.

18200019982 is a deficient number, since it is larger than the sum of its proper divisors (9103649018).

18200019982 is a wasteful number, since it uses less digits than its factorization.

18200019982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213010.

The product of its (nonzero) digits is 20736, while the sum is 40.

It can be divided in two parts, 182000199 and 82, that added together give a palindrome (182000281).

The spelling of 18200019982 in words is "eighteen billion, two hundred million, nineteen thousand, nine hundred eighty-two".