12659744143 has 4 divisors (see below), whose sum is σ = 12661150680. Its totient is φ = 12658337608.

The previous prime is 12659744131. The next prime is 12659744183. The reversal of 12659744143 is 34144795621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12659744143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12659744093 and 12659744102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12659744183) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 689680 + ... + 707797.

It is an arithmetic number, because the mean of its divisors is an integer number (3165287670).

Almost surely, 2^12659744143 is an apocalyptic number.

12659744143 is a deficient number, since it is larger than the sum of its proper divisors (1406537).

12659744143 is an equidigital number, since it uses as much as digits as its factorization.

12659744143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406536.

The product of its digits is 725760, while the sum is 46.

The spelling of 12659744143 in words is "twelve billion, six hundred fifty-nine million, seven hundred forty-four thousand, one hundred forty-three".