12696259236443 has 4 divisors (see below), whose sum is σ = 12819523889328. Its totient is φ = 12572994583560.

The previous prime is 12696259236433. The next prime is 12696259236461. The reversal of 12696259236443 is 34463295269621.

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 12696259236443 - 2²⁰ = 12696258187867 is a prime.

It is a super-2 number, since 2×12696259236443² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12696259236433) 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, 61632326288 + ... + 61632326493.

It is an arithmetic number, because the mean of its divisors is an integer number (3204880972332).

Almost surely, 2^{12696259236443} is an apocalyptic number.

12696259236443 is a deficient number, since it is larger than the sum of its proper divisors (123264652885).

12696259236443 is a wasteful number, since it uses less digits than its factorization.

12696259236443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123264652884.

The product of its digits is 100776960, while the sum is 62.

The spelling of 12696259236443 in words is "twelve trillion, six hundred ninety-six billion, two hundred fifty-nine million, two hundred thirty-six thousand, four hundred forty-three".