12637668620 has 48 divisors (see below), whose sum is σ = 27256975200. Its totient is φ = 4918970880.

The previous prime is 12637668601. The next prime is 12637668629. The reversal of 12637668620 is 2686673621.

It is not an unprimeable number, because it can be changed into a prime (12637668629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299171 + ... + 338789.

It is an arithmetic number, because the mean of its divisors is an integer number (567853650).

Almost surely, 2^12637668620 is an apocalyptic number.

12637668620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12637668620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13628487600).

12637668620 is an abundant number, since it is smaller than the sum of its proper divisors (14619306580).

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

12637668620 is a wasteful number, since it uses less digits than its factorization.

12637668620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40058 (or 40056 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 12637668620 in words is "twelve billion, six hundred thirty-seven million, six hundred sixty-eight thousand, six hundred twenty".