2791016866 has 16 divisors (see below), whose sum is σ = 4567969728. Its totient is φ = 1268407600.

The previous prime is 2791016849. The next prime is 2791016873. The reversal of 2791016866 is 6686101972.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173376 + ... + 188788.

It is an arithmetic number, because the mean of its divisors is an integer number (285498108).

Almost surely, 2^2791016866 is an apocalyptic number.

2791016866 is a deficient number, since it is larger than the sum of its proper divisors (1776952862).

2791016866 is a wasteful number, since it uses less digits than its factorization.

2791016866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23657.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 2791016866 is about 52830.0753927155. The cubic root of 2791016866 is about 1407.9508261413.

The spelling of 2791016866 in words is "two billion, seven hundred ninety-one million, sixteen thousand, eight hundred sixty-six".