2811113867 has 2 divisors, whose sum is σ = 2811113868. Its totient is φ = 2811113866.

The previous prime is 2811113819. The next prime is 2811113957. The reversal of 2811113867 is 7683111182.

It is a happy number.

2811113867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2811113867 is a prime.

It is a super-2 number, since 2×2811113867² = 15804722346479387378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2811113867.

It is not a weakly prime, because it can be changed into another prime (2811113807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405556933 + 1405556934.

It is an arithmetic number, because the mean of its divisors is an integer number (1405556934).

Almost surely, 2^2811113867 is an apocalyptic number.

2811113867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2811113867 is an equidigital number, since it uses as much as digits as its factorization.

2811113867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 38.

The square root of 2811113867 is about 53019.9383911373. The cubic root of 2811113867 is about 1411.3221116873.

The spelling of 2811113867 in words is "two billion, eight hundred eleven million, one hundred thirteen thousand, eight hundred sixty-seven".