8085121868 has 24 divisors (see below), whose sum is σ = 15000152832. Its totient is φ = 3799963904.

The previous prime is 8085121853. The next prime is 8085121883. The reversal of 8085121868 is 8681215808.

It is an interprime number because it is at equal distance from previous prime (8085121853) and next prime (8085121883).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20396 + ... + 128787.

It is an arithmetic number, because the mean of its divisors is an integer number (625006368).

Almost surely, 2^8085121868 is an apocalyptic number.

It is an amenable number.

8085121868 is a deficient number, since it is larger than the sum of its proper divisors (6915030964).

8085121868 is a wasteful number, since it uses less digits than its factorization.

8085121868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150001 (or 149999 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 47.

The square root of 8085121868 is about 89917.3057203117. The cubic root of 8085121868 is about 2007.0684778798.

The spelling of 8085121868 in words is "eight billion, eighty-five million, one hundred twenty-one thousand, eight hundred sixty-eight".