9968624663 has 2 divisors, whose sum is σ = 9968624664. Its totient is φ = 9968624662.

The previous prime is 9968624641. The next prime is 9968624671. The reversal of 9968624663 is 3664268699.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9968624663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9968624063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984312331 + 4984312332.

It is an arithmetic number, because the mean of its divisors is an integer number (4984312332).

Almost surely, 2^9968624663 is an apocalyptic number.

9968624663 is a deficient number, since it is larger than the sum of its proper divisors (1).

9968624663 is an equidigital number, since it uses as much as digits as its factorization.

9968624663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 59.

The square root of 9968624663 is about 99843.0000701101. Note that the first 4 decimals coincide. The cubic root of 9968624663 is about 2152.1791255999.

The spelling of 9968624663 in words is "nine billion, nine hundred sixty-eight million, six hundred twenty-four thousand, six hundred sixty-three".