9791183081 has 2 divisors, whose sum is σ = 9791183082. Its totient is φ = 9791183080.

The previous prime is 9791183071. The next prime is 9791183093. The reversal of 9791183081 is 1803811979.

9791183081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9397557481 + 393625600 = 96941^2 + 19840^2 .

It is a cyclic number.

It is not a de Polignac number, because 9791183081 - 2¹⁰ = 9791182057 is a prime.

It is a super-3 number, since 3×9791183081³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (9791183071) 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, 4895591540 + 4895591541.

It is an arithmetic number, because the mean of its divisors is an integer number (4895591541).

Almost surely, 2^9791183081 is an apocalyptic number.

It is an amenable number.

9791183081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9791183081 is an equidigital number, since it uses as much as digits as its factorization.

9791183081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 47.

The square root of 9791183081 is about 98950.4071795564. The cubic root of 9791183081 is about 2139.3330003430. Note that the first 3 decimals are identical.

The spelling of 9791183081 in words is "nine billion, seven hundred ninety-one million, one hundred eighty-three thousand, eighty-one".