2811138368 has 28 divisors (see below), whose sum is σ = 5580206772. Its totient is φ = 1405102080.

The previous prime is 2811138359. The next prime is 2811138389. The reversal of 2811138368 is 8638311182.

It can be written as a sum of positive squares in 2 ways, for example, as 2268807424 + 542330944 = 47632^2 + 23288^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266246 + ... + 276602.

It is an arithmetic number, because the mean of its divisors is an integer number (199293099).

Almost surely, 2^2811138368 is an apocalyptic number.

It is an amenable number.

2811138368 is a deficient number, since it is larger than the sum of its proper divisors (2769068404).

2811138368 is a wasteful number, since it uses less digits than its factorization.

2811138368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14610 (or 14600 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 2811138368 is about 53020.1694452215. The cubic root of 2811138368 is about 1411.3262119247.

The spelling of 2811138368 in words is "two billion, eight hundred eleven million, one hundred thirty-eight thousand, three hundred sixty-eight".