806128618 has 8 divisors (see below), whose sum is σ = 1272834720. Its totient is φ = 381850380.

The previous prime is 806128607. The next prime is 806128663. The reversal of 806128618 is 816821608.

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

It is a super-3 number, since 3×806128618³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

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, 10606918 + ... + 10606993.

It is an arithmetic number, because the mean of its divisors is an integer number (159104340).

Almost surely, 2^806128618 is an apocalyptic number.

806128618 is a deficient number, since it is larger than the sum of its proper divisors (466706102).

806128618 is a wasteful number, since it uses less digits than its factorization.

806128618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21213932.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 806128618 is about 28392.4042307093. The cubic root of 806128618 is about 930.6822826956.

The spelling of 806128618 in words is "eight hundred six million, one hundred twenty-eight thousand, six hundred eighteen".