9646116481 has 2 divisors, whose sum is σ = 9646116482. Its totient is φ = 9646116480.

The previous prime is 9646116451. The next prime is 9646116497. The reversal of 9646116481 is 1846116469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9357660225 + 288456256 = 96735^2 + 16984^2 .

It is a cyclic number.

It is not a de Polignac number, because 9646116481 - 2⁵ = 9646116449 is a prime.

It is a super-2 number, since 2×9646116481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9646116451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4823058240 + 4823058241.

It is an arithmetic number, because the mean of its divisors is an integer number (4823058241).

Almost surely, 2^9646116481 is an apocalyptic number.

It is an amenable number.

9646116481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9646116481 is an equidigital number, since it uses as much as digits as its factorization.

9646116481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 46.

The square root of 9646116481 is about 98214.6449415768. The cubic root of 9646116481 is about 2128.7149029955.

The spelling of 9646116481 in words is "nine billion, six hundred forty-six million, one hundred sixteen thousand, four hundred eighty-one".