12043866909 has 8 divisors (see below), whose sum is σ = 16200600192. Its totient is φ = 7958189120.

The previous prime is 12043866871. The next prime is 12043866917. The reversal of 12043866909 is 90966834021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12043866909 - 2⁹ = 12043866397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043866949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17763477 + ... + 17764154.

It is an arithmetic number, because the mean of its divisors is an integer number (2025075024).

Almost surely, 2^12043866909 is an apocalyptic number.

It is an amenable number.

12043866909 is a deficient number, since it is larger than the sum of its proper divisors (4156733283).

12043866909 is a wasteful number, since it uses less digits than its factorization.

12043866909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35527747.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 12043866909 in words is "twelve billion, forty-three million, eight hundred sixty-six thousand, nine hundred nine".