18013751982 has 48 divisors (see below), whose sum is σ = 39538764720. Its totient is φ = 5926784256.

The previous prime is 18013751981. The next prime is 18013752013. The reversal of 18013751982 is 28915731081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18013751981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 412038 + ... + 453654.

It is an arithmetic number, because the mean of its divisors is an integer number (823724265).

Almost surely, 2^18013751982 is an apocalyptic number.

18013751982 is an abundant number, since it is smaller than the sum of its proper divisors (21525012738).

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

18013751982 is a wasteful number, since it uses less digits than its factorization.

18013751982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41937 (or 41934 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 18013751982 in words is "eighteen billion, thirteen million, seven hundred fifty-one thousand, nine hundred eighty-two".