12634506644 has 24 divisors (see below), whose sum is σ = 22292444160. Its totient is φ = 6265423424.

The previous prime is 12634506631. The next prime is 12634506649. The reversal of 12634506644 is 44660543621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634506649) 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, 251192 + ... + 297264.

It is an arithmetic number, because the mean of its divisors is an integer number (928851840).

Almost surely, 2^12634506644 is an apocalyptic number.

It is an amenable number.

12634506644 is a deficient number, since it is larger than the sum of its proper divisors (9657937516).

12634506644 is a wasteful number, since it uses less digits than its factorization.

12634506644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46639 (or 46637 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 12634506644 in words is "twelve billion, six hundred thirty-four million, five hundred six thousand, six hundred forty-four".