9865076989 has 2 divisors, whose sum is σ = 9865076990. Its totient is φ = 9865076988.

The previous prime is 9865076971. The next prime is 9865077007. The reversal of 9865076989 is 9896705689.

It is a balanced prime because it is at equal distance from previous prime (9865076971) and next prime (9865077007).

It can be written as a sum of positive squares in only one way, i.e., 9841632025 + 23444964 = 99205^2 + 4842^2 .

It is a cyclic number.

It is not a de Polignac number, because 9865076989 - 2⁷ = 9865076861 is a prime.

It is a super-2 number, since 2×9865076989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9865070989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4932538494 + 4932538495.

It is an arithmetic number, because the mean of its divisors is an integer number (4932538495).

Almost surely, 2^9865076989 is an apocalyptic number.

It is an amenable number.

9865076989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9865076989 is an equidigital number, since it uses as much as digits as its factorization.

9865076989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58786560, while the sum is 67.

The square root of 9865076989 is about 99323.0939359019. The cubic root of 9865076989 is about 2144.7013556834.

The spelling of 9865076989 in words is "nine billion, eight hundred sixty-five million, seventy-six thousand, nine hundred eighty-nine".