12918104775 has 72 divisors (see below), whose sum is σ = 24038485744. Its totient is φ = 6877094400.

The previous prime is 12918104761. The next prime is 12918104791. The reversal of 12918104775 is 57740181921.

It is a happy number.

12918104775 is a `hidden beast` number, since 12 + 91 + 81 + 0 + 477 + 5 = 666.

12918104775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12918104775 - 2¹⁷ = 12917973703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 12918104775.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 4013967 + ... + 4017183.

Almost surely, 2^12918104775 is an apocalyptic number.

12918104775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12918104775 is a deficient number, since it is larger than the sum of its proper divisors (11120380969).

12918104775 is an equidigital number, since it uses as much as digits as its factorization.

12918104775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903 (or 3886 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 12918104775 in words is "twelve billion, nine hundred eighteen million, one hundred four thousand, seven hundred seventy-five".