9411491489 has 2 divisors, whose sum is σ = 9411491490. Its totient is φ = 9411491488.

The previous prime is 9411491471. The next prime is 9411491491. The reversal of 9411491489 is 9841941149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8480936464 + 930555025 = 92092^2 + 30505^2 .

It is a cyclic number.

It is not a de Polignac number, because 9411491489 - 2²⁰ = 9410442913 is a prime.

It is a Sophie Germain prime.

Together with 9411491491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9411491459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4705745744 + 4705745745.

It is an arithmetic number, because the mean of its divisors is an integer number (4705745745).

Almost surely, 2^9411491489 is an apocalyptic number.

It is an amenable number.

9411491489 is a deficient number, since it is larger than the sum of its proper divisors (1).

9411491489 is an equidigital number, since it uses as much as digits as its factorization.

9411491489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 9411491489 is about 97012.8418767330. The cubic root of 9411491489 is about 2111.3139535763.

The spelling of 9411491489 in words is "nine billion, four hundred eleven million, four hundred ninety-one thousand, four hundred eighty-nine".