868542875 has 8 divisors (see below), whose sum is σ = 1083941664. Its totient is φ = 694834200.

The previous prime is 868542833. The next prime is 868542907. The reversal of 868542875 is 578245868.

It is not a de Polignac number, because 868542875 - 2¹² = 868538779 is a prime.

It is a Duffinian number.

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, 3474047 + ... + 3474296.

It is an arithmetic number, because the mean of its divisors is an integer number (135492708).

Almost surely, 2^868542875 is an apocalyptic number.

868542875 is a deficient number, since it is larger than the sum of its proper divisors (215398789).

868542875 is an equidigital number, since it uses as much as digits as its factorization.

868542875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948358 (or 6948348 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 53.

The square root of 868542875 is about 29471.0514742857. The cubic root of 868542875 is about 954.1070113498.

The spelling of 868542875 in words is "eight hundred sixty-eight million, five hundred forty-two thousand, eight hundred seventy-five".