12638875125252 has 24 divisors (see below), whose sum is σ = 29822064904800. Its totient is φ = 4165621763776.

The previous prime is 12638875125251. The next prime is 12638875125257. The reversal of 12638875125252 is 25252157883621.

It is a junction number, because it is equal to n+sod(n) for n = 12638875125192 and 12638875125201.

It is not an unprimeable number, because it can be changed into a prime (12638875125251) 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 7 ways as a sum of consecutive naturals, for example, 5917075302 + ... + 5917077437.

It is an arithmetic number, because the mean of its divisors is an integer number (1242586037700).

Almost surely, 2^{12638875125252} is an apocalyptic number.

12638875125252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12638875125252 is an abundant number, since it is smaller than the sum of its proper divisors (17183189779548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12638875125252 is a wasteful number, since it uses less digits than its factorization.

12638875125252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834152835 (or 11834152833 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 57.

The spelling of 12638875125252 in words is "twelve trillion, six hundred thirty-eight billion, eight hundred seventy-five million, one hundred twenty-five thousand, two hundred fifty-two".