12639140275399 has 4 divisors (see below), whose sum is σ = 13788153027720. Its totient is φ = 11490127523080.

The previous prime is 12639140275373. The next prime is 12639140275441. The reversal of 12639140275399 is 99357204193621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12639140275399 - 2⁵ = 12639140275367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12639140875399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574506376144 + ... + 574506376165.

It is an arithmetic number, because the mean of its divisors is an integer number (3447038256930).

Almost surely, 2^{12639140275399} is an apocalyptic number.

12639140275399 is a deficient number, since it is larger than the sum of its proper divisors (1149012752321).

12639140275399 is a wasteful number, since it uses less digits than its factorization.

12639140275399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149012752320.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 12639140275399 in words is "twelve trillion, six hundred thirty-nine billion, one hundred forty million, two hundred seventy-five thousand, three hundred ninety-nine".