818141818 has 8 divisors (see below), whose sum is σ = 1321613748. Its totient is φ = 377603904.

The previous prime is 818141783. The next prime is 818141837.

818141818 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 817559649 + 582169 = 28593^2 + 763^2 .

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15733471 + ... + 15733522.

Almost surely, 2^818141818 is an apocalyptic number.

818141818 is a deficient number, since it is larger than the sum of its proper divisors (503471930).

818141818 is a wasteful number, since it uses less digits than its factorization.

818141818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31467008.

The product of its digits is 16384, while the sum is 40.

The square root of 818141818 is about 28603.1784597446. The cubic root of 818141818 is about 935.2826194369.

The spelling of 818141818 in words is "eight hundred eighteen million, one hundred forty-one thousand, eight hundred eighteen".