9767966081 has 2 divisors, whose sum is σ = 9767966082. Its totient is φ = 9767966080.

The previous prime is 9767966059. The next prime is 9767966083. The reversal of 9767966081 is 1806697679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8994625600 + 773340481 = 94840^2 + 27809^2 .

It is a cyclic number.

It is not a de Polignac number, because 9767966081 - 2⁶ = 9767966017 is a prime.

It is a super-2 number, since 2×9767966081² (a number of 21 digits) contains 22 as substring.

Together with 9767966083, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9767966081.

It is not a weakly prime, because it can be changed into another prime (9767966083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4883983040 + 4883983041.

It is an arithmetic number, because the mean of its divisors is an integer number (4883983041).

Almost surely, 2^9767966081 is an apocalyptic number.

It is an amenable number.

9767966081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9767966081 is an equidigital number, since it uses as much as digits as its factorization.

9767966081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The square root of 9767966081 is about 98833.0212074891. The cubic root of 9767966081 is about 2137.6407225662.

The spelling of 9767966081 in words is "nine billion, seven hundred sixty-seven million, nine hundred sixty-six thousand, eighty-one".