12904209625 has 16 divisors (see below), whose sum is σ = 16120990080. Its totient is φ = 10312767600.

The previous prime is 12904209623. The next prime is 12904209631. The reversal of 12904209625 is 52690240921.

It is not a de Polignac number, because 12904209625 - 2¹ = 12904209623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12904209623) 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, 70366 + ... + 175384.

It is an arithmetic number, because the mean of its divisors is an integer number (1007561880).

Almost surely, 2^12904209625 is an apocalyptic number.

It is an amenable number.

12904209625 is a deficient number, since it is larger than the sum of its proper divisors (3216780455).

12904209625 is an equidigital number, since it uses as much as digits as its factorization.

12904209625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106017 (or 106007 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 12904209625 in words is "twelve billion, nine hundred four million, two hundred nine thousand, six hundred twenty-five".