12843188009 has 2 divisors, whose sum is σ = 12843188010. Its totient is φ = 12843188008.

The previous prime is 12843187963. The next prime is 12843188011. The reversal of 12843188009 is 90088134821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12327216784 + 515971225 = 111028^2 + 22715^2 .

It is a cyclic number.

It is not a de Polignac number, because 12843188009 - 2¹⁶ = 12843122473 is a prime.

Together with 12843188011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12843188069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421594004 + 6421594005.

It is an arithmetic number, because the mean of its divisors is an integer number (6421594005).

Almost surely, 2^12843188009 is an apocalyptic number.

It is an amenable number.

12843188009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12843188009 is an equidigital number, since it uses as much as digits as its factorization.

12843188009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 12843188009 in words is "twelve billion, eight hundred forty-three million, one hundred eighty-eight thousand, nine".