12717005989 has 2 divisors, whose sum is σ = 12717005990. Its totient is φ = 12717005988.

The previous prime is 12717005947. The next prime is 12717005999. The reversal of 12717005989 is 98950071721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9712102500 + 3004903489 = 98550^2 + 54817^2 .

It is a cyclic number.

It is not a de Polignac number, because 12717005989 - 2¹¹ = 12717003941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12717005909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358502994 + 6358502995.

It is an arithmetic number, because the mean of its divisors is an integer number (6358502995).

Almost surely, 2^12717005989 is an apocalyptic number.

It is an amenable number.

12717005989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12717005989 is an equidigital number, since it uses as much as digits as its factorization.

12717005989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 49.

The spelling of 12717005989 in words is "twelve billion, seven hundred seventeen million, five thousand, nine hundred eighty-nine".