9999766363 has 2 divisors, whose sum is σ = 9999766364. Its totient is φ = 9999766362.

The previous prime is 9999766319. The next prime is 9999766421. The reversal of 9999766363 is 3636679999.

It is a weak prime.

It is an emirp because it is prime and its reverse (3636679999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9999766363 - 2⁹ = 9999765851 is a prime.

It is not a weakly prime, because it can be changed into another prime (9999764363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999883181 + 4999883182.

It is an arithmetic number, because the mean of its divisors is an integer number (4999883182).

Almost surely, 2^9999766363 is an apocalyptic number.

9999766363 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999766363 is an equidigital number, since it uses as much as digits as its factorization.

9999766363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89282088, while the sum is 67.

The square root of 9999766363 is about 99998.8318081766. The cubic root of 9999766363 is about 2154.4179113793.

The spelling of 9999766363 in words is "nine billion, nine hundred ninety-nine million, seven hundred sixty-six thousand, three hundred sixty-three".