12918688983 has 6 divisors (see below), whose sum is σ = 18660328544. Its totient is φ = 8612459316.

The previous prime is 12918688933. The next prime is 12918688987. The reversal of 12918688983 is 38988681921.

It is a happy number.

It is not a de Polignac number, because 12918688983 - 2⁶ = 12918688919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12918688983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918688987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 717704935 + ... + 717704952.

Almost surely, 2^12918688983 is an apocalyptic number.

12918688983 is a deficient number, since it is larger than the sum of its proper divisors (5741639561).

12918688983 is a wasteful number, since it uses less digits than its factorization.

12918688983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435409893 (or 1435409890 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The spelling of 12918688983 in words is "twelve billion, nine hundred eighteen million, six hundred eighty-eight thousand, nine hundred eighty-three".