18083987498 has 16 divisors (see below), whose sum is σ = 28339657920. Its totient is φ = 8638387296.

The previous prime is 18083987497. The next prime is 18083987501. The reversal of 18083987498 is 89478938081.

It is not an unprimeable number, because it can be changed into a prime (18083987497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199643 + ... + 275726.

It is an arithmetic number, because the mean of its divisors is an integer number (1771228620).

Almost surely, 2^18083987498 is an apocalyptic number.

18083987498 is a deficient number, since it is larger than the sum of its proper divisors (10255670422).

18083987498 is a wasteful number, since it uses less digits than its factorization.

18083987498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476221.

The product of its (nonzero) digits is 27869184, while the sum is 65.

The spelling of 18083987498 in words is "eighteen billion, eighty-three million, nine hundred eighty-seven thousand, four hundred ninety-eight".