2808982911 has 16 divisors (see below), whose sum is σ = 4281096704. Its totient is φ = 1604854944.

The previous prime is 2808982903. The next prime is 2808982921. The reversal of 2808982911 is 1192898082.

It is not a de Polignac number, because 2808982911 - 2³ = 2808982903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808982921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221406 + ... + 233748.

It is an arithmetic number, because the mean of its divisors is an integer number (267568544).

Almost surely, 2^2808982911 is an apocalyptic number.

2808982911 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2808982911 is a deficient number, since it is larger than the sum of its proper divisors (1472113793).

2808982911 is a wasteful number, since it uses less digits than its factorization.

2808982911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23190.

The product of its (nonzero) digits is 165888, while the sum is 48.

The square root of 2808982911 is about 52999.8387827737. The cubic root of 2808982911 is about 1410.9654054470.

The spelling of 2808982911 in words is "two billion, eight hundred eight million, nine hundred eighty-two thousand, nine hundred eleven".