12631223644 has 48 divisors (see below), whose sum is σ = 24653805120. Its totient is φ = 5622382080.

The previous prime is 12631223587. The next prime is 12631223659. The reversal of 12631223644 is 44632213621.

12631223644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1478104 + ... + 1486624.

It is an arithmetic number, because the mean of its divisors is an integer number (513620940).

Almost surely, 2^12631223644 is an apocalyptic number.

It is an amenable number.

12631223644 is a deficient number, since it is larger than the sum of its proper divisors (12022581476).

12631223644 is a wasteful number, since it uses less digits than its factorization.

12631223644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550 (or 9548 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The spelling of 12631223644 in words is "twelve billion, six hundred thirty-one million, two hundred twenty-three thousand, six hundred forty-four".