9659548091 has 2 divisors, whose sum is σ = 9659548092. Its totient is φ = 9659548090.

The previous prime is 9659548061. The next prime is 9659548099. The reversal of 9659548091 is 1908459569.

9659548091 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 is a cyclic number.

It is not a de Polignac number, because 9659548091 - 2²² = 9655353787 is a prime.

It is not a weakly prime, because it can be changed into another prime (9659548099) 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, 4829774045 + 4829774046.

It is an arithmetic number, because the mean of its divisors is an integer number (4829774046).

Almost surely, 2^9659548091 is an apocalyptic number.

9659548091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9659548091 is an equidigital number, since it uses as much as digits as its factorization.

9659548091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The square root of 9659548091 is about 98283.0000101747. Note that the first 4 decimals coincide. The cubic root of 9659548091 is about 2129.7024785933.

The spelling of 9659548091 in words is "nine billion, six hundred fifty-nine million, five hundred forty-eight thousand, ninety-one".