966213766789 has 2 divisors, whose sum is σ = 966213766790. Its totient is φ = 966213766788.

The previous prime is 966213766709. The next prime is 966213766841. The reversal of 966213766789 is 987667312669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842020958689 + 124192808100 = 917617^2 + 352410^2 .

It is a cyclic number.

It is not a de Polignac number, because 966213766789 - 2¹⁵ = 966213734021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966213766709) 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, 483106883394 + 483106883395.

It is an arithmetic number, because the mean of its divisors is an integer number (483106883395).

Almost surely, 2^966213766789 is an apocalyptic number.

It is an amenable number.

966213766789 is a deficient number, since it is larger than the sum of its proper divisors (1).

966213766789 is an equidigital number, since it uses as much as digits as its factorization.

966213766789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246903552, while the sum is 70.

The spelling of 966213766789 in words is "nine hundred sixty-six billion, two hundred thirteen million, seven hundred sixty-six thousand, seven hundred eighty-nine".