12637272143 has 4 divisors (see below), whose sum is σ = 12722086200. Its totient is φ = 12552458088.

The previous prime is 12637272139. The next prime is 12637272149. The reversal of 12637272143 is 34127273621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34127273621 = 7 ⋅4875324803.

It is a cyclic number.

It is not a de Polignac number, because 12637272143 - 2² = 12637272139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12637272097 and 12637272106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12637272149) 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, 42406805 + ... + 42407102.

It is an arithmetic number, because the mean of its divisors is an integer number (3180521550).

Almost surely, 2^12637272143 is an apocalyptic number.

12637272143 is a deficient number, since it is larger than the sum of its proper divisors (84814057).

12637272143 is an equidigital number, since it uses as much as digits as its factorization.

12637272143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84814056.

The product of its digits is 84672, while the sum is 38.

The spelling of 12637272143 in words is "twelve billion, six hundred thirty-seven million, two hundred seventy-two thousand, one hundred forty-three".