12369568129 has 4 divisors (see below), whose sum is σ = 12370627584. Its totient is φ = 12368508676.

The previous prime is 12369568121. The next prime is 12369568151. The reversal of 12369568129 is 92186596321.

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.

It is a cyclic number.

It is not a de Polignac number, because 12369568129 - 2³ = 12369568121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12369568121) 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, 512017 + ... + 535630.

It is an arithmetic number, because the mean of its divisors is an integer number (3092656896).

Almost surely, 2^12369568129 is an apocalyptic number.

It is an amenable number.

12369568129 is a deficient number, since it is larger than the sum of its proper divisors (1059455).

12369568129 is a wasteful number, since it uses less digits than its factorization.

12369568129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059454.

The product of its digits is 1399680, while the sum is 52.

The spelling of 12369568129 in words is "twelve billion, three hundred sixty-nine million, five hundred sixty-eight thousand, one hundred twenty-nine".