818080818 has 8 divisors (see below), whose sum is σ = 1636161648. Its totient is φ = 272693604.

The previous prime is 818080799. The next prime is 818080819.

818080818 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

818080818 is an admirable number.

818080818 is a strobogrammatic number because it is the same when read upside-down.

It is a self number, because there is not a number n which added to its sum of digits gives 818080818.

It is not an unprimeable number, because it can be changed into a prime (818080819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68173396 + ... + 68173407.

It is an arithmetic number, because the mean of its divisors is an integer number (204520206).

Almost surely, 2^818080818 is an apocalyptic number.

818080818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

818080818 is a wasteful number, since it uses less digits than its factorization.

818080818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136346808.

The product of its (nonzero) digits is 32768, while the sum is 42.

The square root of 818080818 is about 28602.1121248064. The cubic root of 818080818 is about 935.2593742176.

The spelling of 818080818 in words is "eight hundred eighteen million, eighty thousand, eight hundred eighteen".