2811872863 has 2 divisors, whose sum is σ = 2811872864. Its totient is φ = 2811872862.

The previous prime is 2811872821. The next prime is 2811872867. The reversal of 2811872863 is 3682781182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2811872863 - 2⁹ = 2811872351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2811872867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405936431 + 1405936432.

It is an arithmetic number, because the mean of its divisors is an integer number (1405936432).

Almost surely, 2^2811872863 is an apocalyptic number.

2811872863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2811872863 is an equidigital number, since it uses as much as digits as its factorization.

2811872863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 46.

The square root of 2811872863 is about 53027.0955550085. The cubic root of 2811872863 is about 1411.4491184536.

The spelling of 2811872863 in words is "two billion, eight hundred eleven million, eight hundred seventy-two thousand, eight hundred sixty-three".