9766841563 has 2 divisors, whose sum is σ = 9766841564. Its totient is φ = 9766841562.

The previous prime is 9766841489. The next prime is 9766841569. The reversal of 9766841563 is 3651486679.

It is a strong prime.

It is an emirp because it is prime and its reverse (3651486679) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9766841563 is a prime.

It is not a weakly prime, because it can be changed into another prime (9766841569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4883420781 + 4883420782.

It is an arithmetic number, because the mean of its divisors is an integer number (4883420782).

Almost surely, 2^9766841563 is an apocalyptic number.

9766841563 is a deficient number, since it is larger than the sum of its proper divisors (1).

9766841563 is an equidigital number, since it uses as much as digits as its factorization.

9766841563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 55.

The square root of 9766841563 is about 98827.3320645660. The cubic root of 9766841563 is about 2137.5586888483.

The spelling of 9766841563 in words is "nine billion, seven hundred sixty-six million, eight hundred forty-one thousand, five hundred sixty-three".