12631223643 has 8 divisors (see below), whose sum is σ = 16864301568. Its totient is φ = 8409480744.

The previous prime is 12631223587. The next prime is 12631223659. The reversal of 12631223643 is 34632213621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12631223643 - 2⁸ = 12631223387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12631223663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831155 + ... + 2835612.

It is an arithmetic number, because the mean of its divisors is an integer number (2108037696).

Almost surely, 2^12631223643 is an apocalyptic number.

12631223643 is a deficient number, since it is larger than the sum of its proper divisors (4233077925).

12631223643 is an equidigital number, since it uses as much as digits as its factorization.

12631223643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667513.

The product of its digits is 31104, while the sum is 33.

The spelling of 12631223643 in words is "twelve billion, six hundred thirty-one million, two hundred twenty-three thousand, six hundred forty-three".