12856298208 has 96 divisors (see below), whose sum is σ = 36804096000. Its totient is φ = 3905680896.

The previous prime is 12856298179. The next prime is 12856298219. The reversal of 12856298208 is 80289265821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×12856298208² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 33393 + ... + 163791.

It is an arithmetic number, because the mean of its divisors is an integer number (383376000).

Almost surely, 2^12856298208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12856298208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18402048000).

12856298208 is an abundant number, since it is smaller than the sum of its proper divisors (23947797792).

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

12856298208 is a wasteful number, since it uses less digits than its factorization.

12856298208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130504 (or 130496 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 12856298208 in words is "twelve billion, eight hundred fifty-six million, two hundred ninety-eight thousand, two hundred eight".