3216859868 has 12 divisors (see below), whose sum is σ = 5649399000. Its totient is φ = 1602745872.

The previous prime is 3216859859. The next prime is 3216859871. The reversal of 3216859868 is 8689586123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419743 + ... + 1422006.

It is an arithmetic number, because the mean of its divisors is an integer number (470783250).

Almost surely, 2^3216859868 is an apocalyptic number.

It is an amenable number.

3216859868 is a deficient number, since it is larger than the sum of its proper divisors (2432539132).

3216859868 is a wasteful number, since it uses less digits than its factorization.

3216859868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842036 (or 2842034 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 56.

The square root of 3216859868 is about 56717.3683098925. The cubic root of 3216859868 is about 1476.1960794189.

The spelling of 3216859868 in words is "three billion, two hundred sixteen million, eight hundred fifty-nine thousand, eight hundred sixty-eight".