12659380872 has 64 divisors (see below), whose sum is σ = 33144094080. Its totient is φ = 4021704192.

The previous prime is 12659380859. The next prime is 12659380883. The reversal of 12659380872 is 27808395621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111508 + ... + 194300.

It is an arithmetic number, because the mean of its divisors is an integer number (517876470).

Almost surely, 2^12659380872 is an apocalyptic number.

12659380872 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 12659380872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16572047040).

12659380872 is an abundant number, since it is smaller than the sum of its proper divisors (20484713208).

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

12659380872 is a wasteful number, since it uses less digits than its factorization.

12659380872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83102 (or 83098 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 12659380872 in words is "twelve billion, six hundred fifty-nine million, three hundred eighty thousand, eight hundred seventy-two".