1668284875 has 32 divisors (see below), whose sum is σ = 2225688192. Its totient is φ = 1245376000.

The previous prime is 1668284867. The next prime is 1668284887. The reversal of 1668284875 is 5784828661.

It is not a de Polignac number, because 1668284875 - 2³ = 1668284867 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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110799 + ... + 124951.

It is an arithmetic number, because the mean of its divisors is an integer number (69552756).

Almost surely, 2^1668284875 is an apocalyptic number.

1668284875 is a deficient number, since it is larger than the sum of its proper divisors (557403317).

1668284875 is a wasteful number, since it uses less digits than its factorization.

1668284875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232 (or 14222 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 55.

The square root of 1668284875 is about 40844.6431616191. The cubic root of 1668284875 is about 1186.0146970017.

The spelling of 1668284875 in words is "one billion, six hundred sixty-eight million, two hundred eighty-four thousand, eight hundred seventy-five".