18986610339 has 12 divisors (see below), whose sum is σ = 28868530600. Its totient is φ = 11991543264.

The previous prime is 18986610323. The next prime is 18986610353. The reversal of 18986610339 is 93301668981.

18986610339 is a `hidden beast` number, since 18 + 9 + 8 + 6 + 610 + 3 + 3 + 9 = 666.

It is not a de Polignac number, because 18986610339 - 2⁴ = 18986610323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18986610319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55516234 + ... + 55516575.

Almost surely, 2^18986610339 is an apocalyptic number.

18986610339 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18986610339 is a deficient number, since it is larger than the sum of its proper divisors (9881920261).

18986610339 is a wasteful number, since it uses less digits than its factorization.

18986610339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111032834 (or 111032831 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 18986610339 in words is "eighteen billion, nine hundred eighty-six million, six hundred ten thousand, three hundred thirty-nine".