9541605617 has 2 divisors, whose sum is σ = 9541605618. Its totient is φ = 9541605616.

The previous prime is 9541605569. The next prime is 9541605629. The reversal of 9541605617 is 7165061459.

9541605617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8456825521 + 1084780096 = 91961^2 + 32936^2 .

It is a cyclic number.

It is not a de Polignac number, because 9541605617 - 2²⁸ = 9273170161 is a prime.

It is not a weakly prime, because it can be changed into another prime (9541602617) 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, 4770802808 + 4770802809.

It is an arithmetic number, because the mean of its divisors is an integer number (4770802809).

Almost surely, 2^9541605617 is an apocalyptic number.

It is an amenable number.

9541605617 is a deficient number, since it is larger than the sum of its proper divisors (1).

9541605617 is an equidigital number, since it uses as much as digits as its factorization.

9541605617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 9541605617 is about 97681.1425864788. The cubic root of 9541605617 is about 2120.9991149916. Note that the first 3 decimals are identical.

The spelling of 9541605617 in words is "nine billion, five hundred forty-one million, six hundred five thousand, six hundred seventeen".