12639025012750 has 64 divisors (see below), whose sum is σ = 24800994009792. Its totient is φ = 4817597568000.

The previous prime is 12639025012717. The next prime is 12639025012781. The reversal of 12639025012750 is 5721052093621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 12639025012697 and 12639025012706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13897339 + ... + 14778838.

It is an arithmetic number, because the mean of its divisors is an integer number (387515531403).

Almost surely, 2^{12639025012750} is an apocalyptic number.

12639025012750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12639025012750 is a deficient number, since it is larger than the sum of its proper divisors (12161968997042).

12639025012750 is a wasteful number, since it uses less digits than its factorization.

12639025012750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28676278 (or 28676268 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 12639025012750 in words is "twelve trillion, six hundred thirty-nine billion, twenty-five million, twelve thousand, seven hundred fifty".