12634131644 has 12 divisors (see below), whose sum is σ = 22118688144. Its totient is φ = 6314506464.

The previous prime is 12634131637. The next prime is 12634131647. The reversal of 12634131644 is 44613143621.

12634131644 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 not an unprimeable number, because it can be changed into a prime (12634131647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 628712 + ... + 648495.

It is an arithmetic number, because the mean of its divisors is an integer number (1843224012).

Almost surely, 2^12634131644 is an apocalyptic number.

It is an amenable number.

12634131644 is a deficient number, since it is larger than the sum of its proper divisors (9484556500).

12634131644 is a wasteful number, since it uses less digits than its factorization.

12634131644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279684 (or 1279682 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The spelling of 12634131644 in words is "twelve billion, six hundred thirty-four million, one hundred thirty-one thousand, six hundred forty-four".