8253212866 has 32 divisors (see below), whose sum is σ = 13079283840. Its totient is φ = 3898185984.

The previous prime is 8253212839. The next prime is 8253212867. The reversal of 8253212866 is 6682123528.

It is a super-2 number, since 2×8253212866² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8253212867) 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 15 ways as a sum of consecutive naturals, for example, 1520305 + ... + 1525723.

It is an arithmetic number, because the mean of its divisors is an integer number (408727620).

Almost surely, 2^8253212866 is an apocalyptic number.

8253212866 is a deficient number, since it is larger than the sum of its proper divisors (4826070974).

8253212866 is a wasteful number, since it uses less digits than its factorization.

8253212866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850.

The product of its digits is 276480, while the sum is 43.

The square root of 8253212866 is about 90847.1951465757. The cubic root of 8253212866 is about 2020.8822785442.

The spelling of 8253212866 in words is "eight billion, two hundred fifty-three million, two hundred twelve thousand, eight hundred sixty-six".