2856863218 has 32 divisors (see below), whose sum is σ = 5079674880. Its totient is φ = 1190538000.

The previous prime is 2856863201. The next prime is 2856863221. The reversal of 2856863218 is 8123686582.

It is a super-2 number, since 2×2856863218² = 16323334892722631048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97278 + ... + 123193.

It is an arithmetic number, because the mean of its divisors is an integer number (158739840).

Almost surely, 2^2856863218 is an apocalyptic number.

2856863218 is a deficient number, since it is larger than the sum of its proper divisors (2222811662).

2856863218 is a wasteful number, since it uses less digits than its factorization.

2856863218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220534.

The product of its digits is 1105920, while the sum is 49.

The square root of 2856863218 is about 53449.6325338164. The cubic root of 2856863218 is about 1418.9371167411.

The spelling of 2856863218 in words is "two billion, eight hundred fifty-six million, eight hundred sixty-three thousand, two hundred eighteen".