8485733891 has 2 divisors, whose sum is σ = 8485733892. Its totient is φ = 8485733890.

The previous prime is 8485733813. The next prime is 8485733903. The reversal of 8485733891 is 1983375848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8485733891 - 2³⁰ = 7411992067 is a prime.

It is a super-3 number, since 3×8485733891³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8485733801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242866945 + 4242866946.

It is an arithmetic number, because the mean of its divisors is an integer number (4242866946).

Almost surely, 2^8485733891 is an apocalyptic number.

8485733891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8485733891 is an equidigital number, since it uses as much as digits as its factorization.

8485733891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 56.

The square root of 8485733891 is about 92118.0432434385. The cubic root of 8485733891 is about 2039.6851599057.

The spelling of 8485733891 in words is "eight billion, four hundred eighty-five million, seven hundred thirty-three thousand, eight hundred ninety-one".