12793488309 has 24 divisors (see below), whose sum is σ = 21154265600. Its totient is φ = 7298499168.

The previous prime is 12793488299. The next prime is 12793488317. The reversal of 12793488309 is 90388439721.

12793488309 is a `hidden beast` number, since 127 + 9 + 3 + 488 + 30 + 9 = 666.

It is not a de Polignac number, because 12793488309 - 2⁴ = 12793488293 is a prime.

It is a super-2 number, since 2×12793488309² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12793488319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129034 + ... + 205515.

Almost surely, 2^12793488309 is an apocalyptic number.

It is an amenable number.

12793488309 is a deficient number, since it is larger than the sum of its proper divisors (8360777291).

12793488309 is a wasteful number, since it uses less digits than its factorization.

12793488309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335169 (or 335166 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 12793488309 in words is "twelve billion, seven hundred ninety-three million, four hundred eighty-eight thousand, three hundred nine".