12704913125 has 10 divisors (see below), whose sum is σ = 15876060222. Its totient is φ = 10163930000.

The previous prime is 12704913083. The next prime is 12704913131. The reversal of 12704913125 is 52131940721.

It can be written as a sum of positive squares in 5 ways, for example, as 7726058404 + 4978854721 = 87898^2 + 70561^2 .

It is not a de Polignac number, because 12704913125 - 2¹⁴ = 12704896741 is a prime.

It is a super-2 number, since 2×12704913125² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 10163306 + ... + 10164555.

Almost surely, 2^12704913125 is an apocalyptic number.

It is an amenable number.

12704913125 is a deficient number, since it is larger than the sum of its proper divisors (3171147097).

12704913125 is an frugal number, since it uses more digits than its factorization.

12704913125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20327881 (or 20327866 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 12704913125 in words is "twelve billion, seven hundred four million, nine hundred thirteen thousand, one hundred twenty-five".