818101818 has 24 divisors (see below), whose sum is σ = 1790107956. Its totient is φ = 270000000.

The previous prime is 818101793. The next prime is 818101859.

818101818 is nontrivially palindromic in base 10.

818101818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 704743209 + 113358609 = 26547^2 + 10647^2 .

It is a super-2 number, since 2×818101818² = 1338581169229810248, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

818101818 is a strobogrammatic number because it is the same when read upside-down.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223183 + ... + 226818.

Almost surely, 2^818101818 is an apocalyptic number.

818101818 is an abundant number, since it is smaller than the sum of its proper divisors (972006138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818101818 is a wasteful number, since it uses less digits than its factorization.

818101818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450110 (or 450107 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 36.

The square root of 818101818 is about 28602.4792282068. The cubic root of 818101818 is about 935.2673768006.

The spelling of 818101818 in words is "eight hundred eighteen million, one hundred one thousand, eight hundred eighteen".