2865866684 has 12 divisors (see below), whose sum is σ = 5015691744. Its totient is φ = 1432811904.

The previous prime is 2865866671. The next prime is 2865866693. The reversal of 2865866684 is 4866685682.

It is a super-2 number, since 2×2865866684² = 16426383700922311712, which contains 22 as substring.

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, 41789 + ... + 86475.

It is an arithmetic number, because the mean of its divisors is an integer number (417974312).

Almost surely, 2^2865866684 is an apocalyptic number.

It is an amenable number.

2865866684 is a deficient number, since it is larger than the sum of its proper divisors (2149825060).

2865866684 is a wasteful number, since it uses less digits than its factorization.

2865866684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60724 (or 60722 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 59.

The square root of 2865866684 is about 53533.7901142820. The cubic root of 2865866684 is about 1420.4261572215.

The spelling of 2865866684 in words is "two billion, eight hundred sixty-five million, eight hundred sixty-six thousand, six hundred eighty-four".