9642395716897 has 2 divisors, whose sum is σ = 9642395716898. Its totient is φ = 9642395716896.

The previous prime is 9642395716879. The next prime is 9642395716951. The reversal of 9642395716897 is 7986175932469.

Together with previous prime (9642395716879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8596676776081 + 1045718940816 = 2932009^2 + 1022604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9642395716897 is a prime.

It is a super-2 number, since 2×9642395716897² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9642395716097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4821197858448 + 4821197858449.

It is an arithmetic number, because the mean of its divisors is an integer number (4821197858449).

Almost surely, 2^{9642395716897} is an apocalyptic number.

It is an amenable number.

9642395716897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9642395716897 is an equidigital number, since it uses as much as digits as its factorization.

9642395716897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1234517760, while the sum is 76.

The spelling of 9642395716897 in words is "nine trillion, six hundred forty-two billion, three hundred ninety-five million, seven hundred sixteen thousand, eight hundred ninety-seven".