12638752515025 has 96 divisors (see below), whose sum is σ = 19550798668800. Its totient is φ = 7891619788800.

The previous prime is 12638752514963. The next prime is 12638752515031. The reversal of 12638752515025 is 52051525783621.

It is not a de Polignac number, because 12638752515025 - 2⁷ = 12638752514897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 87194311 + ... + 87339139.

It is an arithmetic number, because the mean of its divisors is an integer number (203654152800).

Almost surely, 2^{12638752515025} is an apocalyptic number.

It is an amenable number.

12638752515025 is a deficient number, since it is larger than the sum of its proper divisors (6912046153775).

12638752515025 is a wasteful number, since it uses less digits than its factorization.

12638752515025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145379 (or 145374 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 52.

The spelling of 12638752515025 in words is "twelve trillion, six hundred thirty-eight billion, seven hundred fifty-two million, five hundred fifteen thousand, twenty-five".