12424402189 has 2 divisors, whose sum is σ = 12424402190. Its totient is φ = 12424402188.

The previous prime is 12424402181. The next prime is 12424402273. The reversal of 12424402189 is 98120442421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10970886564 + 1453515625 = 104742^2 + 38125^2 .

It is a cyclic number.

It is not a de Polignac number, because 12424402189 - 2³ = 12424402181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12424402181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212201094 + 6212201095.

It is an arithmetic number, because the mean of its divisors is an integer number (6212201095).

Almost surely, 2^12424402189 is an apocalyptic number.

It is an amenable number.

12424402189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12424402189 is an equidigital number, since it uses as much as digits as its factorization.

12424402189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 12424402189 in words is "twelve billion, four hundred twenty-four million, four hundred two thousand, one hundred eighty-nine".