12808391026212 has 18 divisors (see below), whose sum is σ = 32376766205238. Its totient is φ = 4269463675392.

The previous prime is 12808391026181. The next prime is 12808391026213. The reversal of 12808391026212 is 21262019380821.

12808391026212 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 8 + 3 + 9 + 10 + 2 + 621 + 2 = 666.

12808391026212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11439926231616 + 1368464794596 = 3382296^2 + 1169814^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (12808391026213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177894319773 + ... + 177894319844.

Almost surely, 2^{12808391026212} is an apocalyptic number.

12808391026212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12808391026212 is an abundant number, since it is smaller than the sum of its proper divisors (19568375179026).

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

12808391026212 is a wasteful number, since it uses less digits than its factorization.

12808391026212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355788639627 (or 355788639622 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 12808391026212 in words is "twelve trillion, eight hundred eight billion, three hundred ninety-one million, twenty-six thousand, two hundred twelve".