12805412984 has 32 divisors (see below), whose sum is σ = 29550954720. Its totient is φ = 5065877376.

The previous prime is 12805412969. The next prime is 12805412987. The reversal of 12805412984 is 48921450821.

12805412984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12805412987) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8794199 + ... + 8795654.

It is an arithmetic number, because the mean of its divisors is an integer number (923467335).

Almost surely, 2^12805412984 is an apocalyptic number.

12805412984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12805412984 is an abundant number, since it is smaller than the sum of its proper divisors (16745541736).

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

12805412984 is a wasteful number, since it uses less digits than its factorization.

12805412984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17589879 (or 17589875 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 12805412984 in words is "twelve billion, eight hundred five million, four hundred twelve thousand, nine hundred eighty-four".