12639026525250 has 32 divisors (see below), whose sum is σ = 31547010208896. Its totient is φ = 3370407073200.

The previous prime is 12639026525249. The next prime is 12639026525261. The reversal of 12639026525250 is 5252562093621.

It is a self number, because there is not a number n which added to its sum of digits gives 12639026525250.

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 15 ways as a sum of consecutive naturals, for example, 8426016934 + ... + 8426018433.

It is an arithmetic number, because the mean of its divisors is an integer number (985844069028).

Almost surely, 2^{12639026525250} is an apocalyptic number.

12639026525250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12639026525250 is an abundant number, since it is smaller than the sum of its proper divisors (18907983683646).

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

12639026525250 is a wasteful number, since it uses less digits than its factorization.

12639026525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16852035387 (or 16852035377 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 12639026525250 in words is "twelve trillion, six hundred thirty-nine billion, twenty-six million, five hundred twenty-five thousand, two hundred fifty".