12805603929 has 16 divisors (see below), whose sum is σ = 19120650240. Its totient is φ = 8469846000.

The previous prime is 12805603903. The next prime is 12805603931. The reversal of 12805603929 is 92930650821.

12805603929 is a `hidden beast` number, since 1 + 2 + 80 + 560 + 3 + 9 + 2 + 9 = 666.

It is not a de Polignac number, because 12805603929 - 2⁷ = 12805603801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12805603529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863822 + ... + 1870679.

It is an arithmetic number, because the mean of its divisors is an integer number (1195040640).

Almost surely, 2^12805603929 is an apocalyptic number.

It is an amenable number.

12805603929 is a deficient number, since it is larger than the sum of its proper divisors (6315046311).

12805603929 is a wasteful number, since it uses less digits than its factorization.

12805603929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734637 (or 3734631 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 12805603929 in words is "twelve billion, eight hundred five million, six hundred three thousand, nine hundred twenty-nine".