8249543873 has 2 divisors, whose sum is σ = 8249543874. Its totient is φ = 8249543872.

The previous prime is 8249543821. The next prime is 8249543903. The reversal of 8249543873 is 3783459428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8224313344 + 25230529 = 90688^2 + 5023^2 .

It is a cyclic number.

It is not a de Polignac number, because 8249543873 - 2¹⁰ = 8249542849 is a prime.

It is a super-2 number, since 2×8249543873² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8219543873) 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, 4124771936 + 4124771937.

It is an arithmetic number, because the mean of its divisors is an integer number (4124771937).

Almost surely, 2^8249543873 is an apocalyptic number.

It is an amenable number.

8249543873 is a deficient number, since it is larger than the sum of its proper divisors (1).

8249543873 is an equidigital number, since it uses as much as digits as its factorization.

8249543873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 53.

The square root of 8249543873 is about 90826.9996917216. Note that the first 3 decimals coincide. The cubic root of 8249543873 is about 2020.5827708634.

The spelling of 8249543873 in words is "eight billion, two hundred forty-nine million, five hundred forty-three thousand, eight hundred seventy-three".