12648350661325 has 6 divisors (see below), whose sum is σ = 15683954820074. Its totient is φ = 10118680529040.

The previous prime is 12648350661319. The next prime is 12648350661337. The reversal of 12648350661325 is 52316605384621.

It can be written as a sum of positive squares in 3 ways, for example, as 6642413001 + 12641708248324 = 81501^2 + 3555518^2 .

It is not a de Polignac number, because 12648350661325 - 2⁵ = 12648350661293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252967013202 + ... + 252967013251.

Almost surely, 2^{12648350661325} is an apocalyptic number.

It is an amenable number.

12648350661325 is a deficient number, since it is larger than the sum of its proper divisors (3035604158749).

12648350661325 is an equidigital number, since it uses as much as digits as its factorization.

12648350661325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505934026463 (or 505934026458 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 12648350661325 in words is "twelve trillion, six hundred forty-eight billion, three hundred fifty million, six hundred sixty-one thousand, three hundred twenty-five".