808311578018 has 24 divisors (see below), whose sum is σ = 1401421524672. Its totient is φ = 342526849632.

The previous prime is 808311577999. The next prime is 808311578069. The reversal of 808311578018 is 810875113808.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3533630 + ... + 3755417.

It is an arithmetic number, because the mean of its divisors is an integer number (58392563528).

Almost surely, 2^808311578018 is an apocalyptic number.

808311578018 is a deficient number, since it is larger than the sum of its proper divisors (593109946654).

808311578018 is an equidigital number, since it uses as much as digits as its factorization.

808311578018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289234 (or 7289145 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 50.

The spelling of 808311578018 in words is "eight hundred eight billion, three hundred eleven million, five hundred seventy-eight thousand, eighteen".