12918945269 has 16 divisors (see below), whose sum is σ = 14033440512. Its totient is φ = 11847863808.

The previous prime is 12918945257. The next prime is 12918945283. The reversal of 12918945269 is 96254981921.

12918945269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12918945269 - 2¹² = 12918941173 is a prime.

It is a super-2 number, since 2×12918945269² (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 (12918945209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40292 + ... + 165714.

It is an arithmetic number, because the mean of its divisors is an integer number (877090032).

Almost surely, 2^12918945269 is an apocalyptic number.

It is an amenable number.

12918945269 is a deficient number, since it is larger than the sum of its proper divisors (1114495243).

12918945269 is a wasteful number, since it uses less digits than its factorization.

12918945269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125596.

The product of its digits is 2799360, while the sum is 56.

The spelling of 12918945269 in words is "twelve billion, nine hundred eighteen million, nine hundred forty-five thousand, two hundred sixty-nine".