12609172325 has 24 divisors (see below), whose sum is σ = 15736195200. Its totient is φ = 10022443200.

The previous prime is 12609172321. The next prime is 12609172327. The reversal of 12609172325 is 52327190621.

It is not a de Polignac number, because 12609172325 - 2² = 12609172321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609172321) 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, 4809515 + ... + 4812135.

It is an arithmetic number, because the mean of its divisors is an integer number (655674800).

Almost surely, 2^12609172325 is an apocalyptic number.

It is an amenable number.

12609172325 is a deficient number, since it is larger than the sum of its proper divisors (3127022875).

12609172325 is a wasteful number, since it uses less digits than its factorization.

12609172325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797 (or 3792 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 12609172325 in words is "twelve billion, six hundred nine million, one hundred seventy-two thousand, three hundred twenty-five".