12634411544 has 8 divisors (see below), whose sum is σ = 23689521660. Its totient is φ = 6317205768.

The previous prime is 12634411511. The next prime is 12634411631. The reversal of 12634411544 is 44511443621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789650714 + ... + 789650729.

Almost surely, 2^12634411544 is an apocalyptic number.

It is an amenable number.

12634411544 is a deficient number, since it is larger than the sum of its proper divisors (11055110116).

12634411544 is a wasteful number, since it uses less digits than its factorization.

12634411544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579301449 (or 1579301445 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The spelling of 12634411544 in words is "twelve billion, six hundred thirty-four million, four hundred eleven thousand, five hundred forty-four".