12639806300 has 72 divisors (see below), whose sum is σ = 30036327552. Its totient is φ = 4578712000.

The previous prime is 12639806299. The next prime is 12639806351. The reversal of 12639806300 is 360893621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267455 + ... + 311145.

It is an arithmetic number, because the mean of its divisors is an integer number (417171216).

Almost surely, 2^12639806300 is an apocalyptic number.

12639806300 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 12639806300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15018163776).

12639806300 is an abundant number, since it is smaller than the sum of its proper divisors (17396521252).

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

12639806300 is a wasteful number, since it uses less digits than its factorization.

12639806300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43979 (or 43972 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 12639806300 in words is "twelve billion, six hundred thirty-nine million, eight hundred six thousand, three hundred".