12865350640139 has 4 divisors (see below), whose sum is σ = 12865471881024. Its totient is φ = 12865229399256.

The previous prime is 12865350640111. The next prime is 12865350640217. The reversal of 12865350640139 is 93104605356821.

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 12865350640139 - 2²⁸ = 12865082204683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12865355640139) 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 3 ways as a sum of consecutive naturals, for example, 60461132 + ... + 60673545.

It is an arithmetic number, because the mean of its divisors is an integer number (3216367970256).

Almost surely, 2^{12865350640139} is an apocalyptic number.

12865350640139 is a deficient number, since it is larger than the sum of its proper divisors (121240885).

12865350640139 is a wasteful number, since it uses less digits than its factorization.

12865350640139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121240884.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 12865350640139 in words is "twelve trillion, eight hundred sixty-five billion, three hundred fifty million, six hundred forty thousand, one hundred thirty-nine".