9645448361 has 2 divisors, whose sum is σ = 9645448362. Its totient is φ = 9645448360.

The previous prime is 9645448289. The next prime is 9645448369. The reversal of 9645448361 is 1638445469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5752312336 + 3893136025 = 75844^2 + 62395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9645448361 is a prime.

It is not a weakly prime, because it can be changed into another prime (9645448369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4822724180 + 4822724181.

It is an arithmetic number, because the mean of its divisors is an integer number (4822724181).

Almost surely, 2^9645448361 is an apocalyptic number.

It is an amenable number.

9645448361 is a deficient number, since it is larger than the sum of its proper divisors (1).

9645448361 is an equidigital number, since it uses as much as digits as its factorization.

9645448361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 50.

The square root of 9645448361 is about 98211.2435569370. The cubic root of 9645448361 is about 2128.6657547246.

The spelling of 9645448361 in words is "nine billion, six hundred forty-five million, four hundred forty-eight thousand, three hundred sixty-one".