12645725125 has 48 divisors (see below), whose sum is σ = 17421348672. Its totient is φ = 9157500000.

The previous prime is 12645725117. The next prime is 12645725149. The reversal of 12645725125 is 52152754621.

It is a happy number.

It is not a de Polignac number, because 12645725125 - 2³ = 12645725117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3794710 + ... + 3798040.

It is an arithmetic number, because the mean of its divisors is an integer number (362944764).

Almost surely, 2^12645725125 is an apocalyptic number.

It is an amenable number.

12645725125 is a deficient number, since it is larger than the sum of its proper divisors (4775623547).

12645725125 is a wasteful number, since it uses less digits than its factorization.

12645725125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619 (or 3598 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The spelling of 12645725125 in words is "twelve billion, six hundred forty-five million, seven hundred twenty-five thousand, one hundred twenty-five".