12647817005725 has 24 divisors (see below), whose sum is σ = 17127827856000. Its totient is φ = 9188315136000.

The previous prime is 12647817005717. The next prime is 12647817005737. The reversal of 12647817005725 is 52750071874621.

It is not a de Polignac number, because 12647817005725 - 2³ = 12647817005717 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24992100 + ... + 25493149.

It is an arithmetic number, because the mean of its divisors is an integer number (713659494000).

Almost surely, 2^{12647817005725} is an apocalyptic number.

It is an amenable number.

12647817005725 is a deficient number, since it is larger than the sum of its proper divisors (4480010850275).

12647817005725 is a wasteful number, since it uses less digits than its factorization.

12647817005725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50486181 (or 50486176 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 12647817005725 in words is "twelve trillion, six hundred forty-seven billion, eight hundred seventeen million, five thousand, seven hundred twenty-five".