818228895 has 32 divisors (see below), whose sum is σ = 1447766784. Its totient is φ = 391276800.

The previous prime is 818228843. The next prime is 818228903. The reversal of 818228895 is 598822818.

It is not a de Polignac number, because 818228895 - 2²⁰ = 817180319 is a prime.

It is a super-2 number, since 2×818228895² = 1338997049225842050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21921 + ... + 46010.

It is an arithmetic number, because the mean of its divisors is an integer number (45242712).

Almost surely, 2^818228895 is an apocalyptic number.

818228895 is a deficient number, since it is larger than the sum of its proper divisors (629537889).

818228895 is a wasteful number, since it uses less digits than its factorization.

818228895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68023.

The product of its digits is 737280, while the sum is 51.

The square root of 818228895 is about 28604.7005752551. The cubic root of 818228895 is about 935.3157997950.

The spelling of 818228895 in words is "eight hundred eighteen million, two hundred twenty-eight thousand, eight hundred ninety-five".