12642006589 has 2 divisors, whose sum is σ = 12642006590. Its totient is φ = 12642006588.

The previous prime is 12642006581. The next prime is 12642006607. The reversal of 12642006589 is 98560024621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10106884089 + 2535122500 = 100533^2 + 50350^2 .

It is an emirp because it is prime and its reverse (98560024621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12642006589 - 2³ = 12642006581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642006581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321003294 + 6321003295.

It is an arithmetic number, because the mean of its divisors is an integer number (6321003295).

Almost surely, 2^12642006589 is an apocalyptic number.

It is an amenable number.

12642006589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642006589 is an equidigital number, since it uses as much as digits as its factorization.

12642006589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 12642006589 in words is "twelve billion, six hundred forty-two million, six thousand, five hundred eighty-nine".