12163891089 has 16 divisors (see below), whose sum is σ = 18575501312. Its totient is φ = 6935776848.

The previous prime is 12163891049. The next prime is 12163891123. The reversal of 12163891089 is 98019836121.

12163891089 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 12163891089 - 2⁸ = 12163890833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12163891049) 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, 615799 + ... + 635244.

It is an arithmetic number, because the mean of its divisors is an integer number (1160968832).

Almost surely, 2^12163891089 is an apocalyptic number.

It is an amenable number.

12163891089 is a deficient number, since it is larger than the sum of its proper divisors (6411610223).

12163891089 is a wasteful number, since it uses less digits than its factorization.

12163891089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251516.

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 12163891089 in words is "twelve billion, one hundred sixty-three million, eight hundred ninety-one thousand, eighty-nine".