12918888239 has 8 divisors (see below), whose sum is σ = 13481717760. Its totient is φ = 12356153656.

The previous prime is 12918888179. The next prime is 12918888247. The reversal of 12918888239 is 93288881921.

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

It is not a de Polignac number, because 12918888239 - 2²⁴ = 12902111023 is a prime.

It is a super-2 number, since 2×12918888239² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918882239) 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, 509234 + ... + 534000.

It is an arithmetic number, because the mean of its divisors is an integer number (1685214720).

Almost surely, 2^12918888239 is an apocalyptic number.

12918888239 is a deficient number, since it is larger than the sum of its proper divisors (562829521).

12918888239 is a wasteful number, since it uses less digits than its factorization.

12918888239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47469.

The product of its digits is 3981312, while the sum is 59.

The spelling of 12918888239 in words is "twelve billion, nine hundred eighteen million, eight hundred eighty-eight thousand, two hundred thirty-nine".