9788768069 has 2 divisors, whose sum is σ = 9788768070. Its totient is φ = 9788768068.

The previous prime is 9788768051. The next prime is 9788768071. The reversal of 9788768069 is 9608678879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5070864100 + 4717903969 = 71210^2 + 68687^2 .

It is a cyclic number.

It is not a de Polignac number, because 9788768069 - 2²⁰ = 9787719493 is a prime.

It is a super-2 number, since 2×9788768069² (a number of 21 digits) contains 22 as substring.

Together with 9788768071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9788768009) 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, 4894384034 + 4894384035.

It is an arithmetic number, because the mean of its divisors is an integer number (4894384035).

Almost surely, 2^9788768069 is an apocalyptic number.

It is an amenable number.

9788768069 is a deficient number, since it is larger than the sum of its proper divisors (1).

9788768069 is an equidigital number, since it uses as much as digits as its factorization.

9788768069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73156608, while the sum is 68.

The square root of 9788768069 is about 98938.2032836659. The cubic root of 9788768069 is about 2139.1570958358.

The spelling of 9788768069 in words is "nine billion, seven hundred eighty-eight million, seven hundred sixty-eight thousand, sixty-nine".