2811872855 has 16 divisors (see below), whose sum is σ = 3682584864. Its totient is φ = 2044116480.

The previous prime is 2811872821. The next prime is 2811872863. The reversal of 2811872855 is 5582781182.

It is a happy number.

It is not a de Polignac number, because 2811872855 - 2¹⁶ = 2811807319 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 135107 + ... + 154523.

It is an arithmetic number, because the mean of its divisors is an integer number (230161554).

Almost surely, 2^2811872855 is an apocalyptic number.

2811872855 is a deficient number, since it is larger than the sum of its proper divisors (870712009).

2811872855 is a wasteful number, since it uses less digits than its factorization.

2811872855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22066.

The product of its digits is 358400, while the sum is 47.

The square root of 2811872855 is about 53027.0954795753. The cubic root of 2811872855 is about 1411.4491171150.

The spelling of 2811872855 in words is "two billion, eight hundred eleven million, eight hundred seventy-two thousand, eight hundred fifty-five".