12918830749 has 4 divisors (see below), whose sum is σ = 14093269920. Its totient is φ = 11744391580.

The previous prime is 12918830713. The next prime is 12918830783. The reversal of 12918830749 is 94703881921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94703881921 = 11 ⋅8609443811.

It is a cyclic number.

It is not a de Polignac number, because 12918830749 - 2¹⁹ = 12918306461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12918830696 and 12918830705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918830789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587219569 + ... + 587219590.

It is an arithmetic number, because the mean of its divisors is an integer number (3523317480).

Almost surely, 2^12918830749 is an apocalyptic number.

It is an amenable number.

12918830749 is a deficient number, since it is larger than the sum of its proper divisors (1174439171).

12918830749 is a wasteful number, since it uses less digits than its factorization.

12918830749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174439170.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 12918830749 in words is "twelve billion, nine hundred eighteen million, eight hundred thirty thousand, seven hundred forty-nine".