12698643008 has 112 divisors (see below), whose sum is σ = 26990040000. Its totient is φ = 5910755328.

The previous prime is 12698642993. The next prime is 12698643031. The reversal of 12698643008 is 80034689621.

12698643008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12698643008² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19748735 + ... + 19749377.

It is an arithmetic number, because the mean of its divisors is an integer number (240982500).

Almost surely, 2^12698643008 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 12698643008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13495020000).

12698643008 is an abundant number, since it is smaller than the sum of its proper divisors (14291396992).

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

12698643008 is a wasteful number, since it uses less digits than its factorization.

12698643008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 12698643008 in words is "twelve billion, six hundred ninety-eight million, six hundred forty-three thousand, eight".