8527131873 has 20 divisors (see below), whose sum is σ = 13717913748. Its totient is φ = 5247465120.

The previous prime is 8527131869. The next prime is 8527131889. The reversal of 8527131873 is 3781317258.

It can be written as a sum of positive squares in 2 ways, for example, as 2149991424 + 6377140449 = 46368^2 + 79857^2 .

It is not a de Polignac number, because 8527131873 - 2² = 8527131869 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8527131973) 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 in 19 ways as a sum of consecutive naturals, for example, 4047918 + ... + 4050023.

Almost surely, 2^8527131873 is an apocalyptic number.

It is an amenable number.

8527131873 is a deficient number, since it is larger than the sum of its proper divisors (5190781875).

8527131873 is a wasteful number, since it uses less digits than its factorization.

8527131873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8097966 (or 8097957 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 8527131873 is about 92342.4705809846. The cubic root of 8527131873 is about 2042.9966750061.

The spelling of 8527131873 in words is "eight billion, five hundred twenty-seven million, one hundred thirty-one thousand, eight hundred seventy-three".