12863239693 has 4 divisors (see below), whose sum is σ = 13422511008. Its totient is φ = 12303968380.

The previous prime is 12863239679. The next prime is 12863239721. The reversal of 12863239693 is 39693236821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39693236821 = 7 ⋅5670462403.

It is a cyclic number.

It is not a de Polignac number, because 12863239693 - 2²⁵ = 12829685261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12863239693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12863239093) 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, 279635623 + ... + 279635668.

It is an arithmetic number, because the mean of its divisors is an integer number (3355627752).

Almost surely, 2^12863239693 is an apocalyptic number.

It is an amenable number.

12863239693 is a deficient number, since it is larger than the sum of its proper divisors (559271315).

12863239693 is an equidigital number, since it uses as much as digits as its factorization.

12863239693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559271314.

The product of its digits is 2519424, while the sum is 52.

The spelling of 12863239693 in words is "twelve billion, eight hundred sixty-three million, two hundred thirty-nine thousand, six hundred ninety-three".