12638752527625 has 32 divisors (see below), whose sum is σ = 18047958888960. Its totient is φ = 8656243012800.

The previous prime is 12638752527623. The next prime is 12638752527631. The reversal of 12638752527625 is 52672525783621.

It is not a de Polignac number, because 12638752527625 - 2¹ = 12638752527623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12638752527623) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7873914 + ... + 9342163.

It is an arithmetic number, because the mean of its divisors is an integer number (563998715280).

Almost surely, 2^{12638752527625} is an apocalyptic number.

It is an amenable number.

12638752527625 is a deficient number, since it is larger than the sum of its proper divisors (5409206361335).

12638752527625 is an equidigital number, since it uses as much as digits as its factorization.

12638752527625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216938 (or 17216928 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 61.

The spelling of 12638752527625 in words is "twelve trillion, six hundred thirty-eight billion, seven hundred fifty-two million, five hundred twenty-seven thousand, six hundred twenty-five".