12637651387625 has 16 divisors (see below), whose sum is σ = 17205587927424. Its totient is φ = 9191019190000.

The previous prime is 12637651387523. The next prime is 12637651387637. The reversal of 12637651387625 is 52678315673621.

It is not a de Polignac number, because 12637651387625 - 2¹⁰ = 12637651386601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4595508221 + ... + 4595510970.

It is an arithmetic number, because the mean of its divisors is an integer number (1075349245464).

Almost surely, 2^{12637651387625} is an apocalyptic number.

It is an amenable number.

12637651387625 is a deficient number, since it is larger than the sum of its proper divisors (4567936539799).

12637651387625 is an equidigital number, since it uses as much as digits as its factorization.

12637651387625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191019217 (or 9191019207 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 62.

The spelling of 12637651387625 in words is "twelve trillion, six hundred thirty-seven billion, six hundred fifty-one million, three hundred eighty-seven thousand, six hundred twenty-five".