12634349720 has 16 divisors (see below), whose sum is σ = 28427286960. Its totient is φ = 5053739872.

The previous prime is 12634349713. The next prime is 12634349737. The reversal of 12634349720 is 2794343621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157929332 + ... + 157929411.

It is an arithmetic number, because the mean of its divisors is an integer number (1776705435).

Almost surely, 2^12634349720 is an apocalyptic number.

12634349720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12634349720 is an abundant number, since it is smaller than the sum of its proper divisors (15792937240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12634349720 is a wasteful number, since it uses less digits than its factorization.

12634349720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315858754 (or 315858750 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 12634349720 in words is "twelve billion, six hundred thirty-four million, three hundred forty-nine thousand, seven hundred twenty".