12700644143 has 4 divisors (see below), whose sum is σ = 13855248168. Its totient is φ = 11546040120.

The previous prime is 12700644133. The next prime is 12700644157. The reversal of 12700644143 is 34144600721.

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 12700644143 - 2⁴ = 12700644127 is a prime.

It is a super-2 number, since 2×12700644143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12700644133) 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, 577301996 + ... + 577302017.

It is an arithmetic number, because the mean of its divisors is an integer number (3463812042).

Almost surely, 2^12700644143 is an apocalyptic number.

12700644143 is a deficient number, since it is larger than the sum of its proper divisors (1154604025).

12700644143 is a wasteful number, since it uses less digits than its factorization.

12700644143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154604024.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 12700644143 in words is "twelve billion, seven hundred million, six hundred forty-four thousand, one hundred forty-three".