12639314352 has 160 divisors (see below), whose sum is σ = 38273264640. Its totient is φ = 3519774720.

The previous prime is 12639314333. The next prime is 12639314357. The reversal of 12639314352 is 25341393621.

It is a self number, because there is not a number n which added to its sum of digits gives 12639314352.

It is not an unprimeable number, because it can be changed into a prime (12639314357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2120208 + ... + 2126160.

It is an arithmetic number, because the mean of its divisors is an integer number (239207904).

Almost surely, 2^12639314352 is an apocalyptic number.

12639314352 is a gapful number since it is divisible by the number (12) 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 12639314352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19136632320).

12639314352 is an abundant number, since it is smaller than the sum of its proper divisors (25633950288).

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

12639314352 is a wasteful number, since it uses less digits than its factorization.

12639314352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6125 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The spelling of 12639314352 in words is "twelve billion, six hundred thirty-nine million, three hundred fourteen thousand, three hundred fifty-two".