12638154925 has 12 divisors (see below), whose sum is σ = 17095977216. Its totient is φ = 9191385200.

The previous prime is 12638154913. The next prime is 12638154961. The reversal of 12638154925 is 52945183621.

It is not a de Polignac number, because 12638154925 - 2²¹ = 12636057773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22978189 + ... + 22978738.

It is an arithmetic number, because the mean of its divisors is an integer number (1424664768).

Almost surely, 2^12638154925 is an apocalyptic number.

It is an amenable number.

12638154925 is a deficient number, since it is larger than the sum of its proper divisors (4457822291).

12638154925 is a wasteful number, since it uses less digits than its factorization.

12638154925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45956948 (or 45956943 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 12638154925 in words is "twelve billion, six hundred thirty-eight million, one hundred fifty-four thousand, nine hundred twenty-five".