12687853589 has 2 divisors, whose sum is σ = 12687853590. Its totient is φ = 12687853588.

The previous prime is 12687853543. The next prime is 12687853601. The reversal of 12687853589 is 98535878621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10036633489 + 2651220100 = 100183^2 + 51490^2 .

It is an emirp because it is prime and its reverse (98535878621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12687853589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12687850589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6343926794 + 6343926795.

It is an arithmetic number, because the mean of its divisors is an integer number (6343926795).

Almost surely, 2^12687853589 is an apocalyptic number.

It is an amenable number.

12687853589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12687853589 is an equidigital number, since it uses as much as digits as its factorization.

12687853589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 62.

The spelling of 12687853589 in words is "twelve billion, six hundred eighty-seven million, eight hundred fifty-three thousand, five hundred eighty-nine".