9804664481 has 2 divisors, whose sum is σ = 9804664482. Its totient is φ = 9804664480.

The previous prime is 9804664423. The next prime is 9804664537. The reversal of 9804664481 is 1844664089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7330099456 + 2474565025 = 85616^2 + 49745^2 .

It is an emirp because it is prime and its reverse (1844664089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9804664481 - 2¹⁴ = 9804648097 is a prime.

It is a super-2 number, since 2×9804664481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9804664081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4902332240 + 4902332241.

It is an arithmetic number, because the mean of its divisors is an integer number (4902332241).

Almost surely, 2^9804664481 is an apocalyptic number.

It is an amenable number.

9804664481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9804664481 is an equidigital number, since it uses as much as digits as its factorization.

9804664481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 9804664481 is about 99018.5057501879. The cubic root of 9804664481 is about 2140.3144267520.

The spelling of 9804664481 in words is "nine billion, eight hundred four million, six hundred sixty-four thousand, four hundred eighty-one".