12637632500 has 30 divisors (see below), whose sum is σ = 27635980218. Its totient is φ = 5055052000.

The previous prime is 12637632481. The next prime is 12637632529. The reversal of 12637632500 is 523673621.

It can be written as a sum of positive squares in 5 ways, for example, as 6653991184 + 5983641316 = 81572^2 + 77354^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2525027 + ... + 2530026.

Almost surely, 2^12637632500 is an apocalyptic number.

12637632500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12637632500 is an abundant number, since it is smaller than the sum of its proper divisors (14998347718).

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

12637632500 is an equidigital number, since it uses as much as digits as its factorization.

12637632500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055077 (or 5055060 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 12637632500 in words is "twelve billion, six hundred thirty-seven million, six hundred thirty-two thousand, five hundred".