12716632889 has 2 divisors, whose sum is σ = 12716632890. Its totient is φ = 12716632888.

The previous prime is 12716632883. The next prime is 12716632921. The reversal of 12716632889 is 98823661721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12701290000 + 15342889 = 112700^2 + 3917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12716632889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12716632889.

It is not a weakly prime, because it can be changed into another prime (12716632883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358316444 + 6358316445.

It is an arithmetic number, because the mean of its divisors is an integer number (6358316445).

Almost surely, 2^12716632889 is an apocalyptic number.

It is an amenable number.

12716632889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12716632889 is an equidigital number, since it uses as much as digits as its factorization.

12716632889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The spelling of 12716632889 in words is "twelve billion, seven hundred sixteen million, six hundred thirty-two thousand, eight hundred eighty-nine".