800118881 has 2 divisors, whose sum is σ = 800118882. Its totient is φ = 800118880.

The previous prime is 800118859. The next prime is 800118973. The reversal of 800118881 is 188811008.

800118881 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 can be written as a sum of positive squares in only one way, i.e., 636048400 + 164070481 = 25220^2 + 12809^2 .

It is a cyclic number.

It is not a de Polignac number, because 800118881 - 2⁶ = 800118817 is a prime.

It is a super-2 number, since 2×800118881² = 1280380447465384322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (800118281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400059440 + 400059441.

It is an arithmetic number, because the mean of its divisors is an integer number (400059441).

Almost surely, 2^800118881 is an apocalyptic number.

It is an amenable number.

800118881 is a deficient number, since it is larger than the sum of its proper divisors (1).

800118881 is an equidigital number, since it uses as much as digits as its factorization.

800118881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 35.

The square root of 800118881 is about 28286.3727084262. The cubic root of 800118881 is about 928.3637475052.

Adding to 800118881 its reverse (188811008), we get a palindrome (988929889).

The spelling of 800118881 in words is "eight hundred million, one hundred eighteen thousand, eight hundred eighty-one".