818050819 has 4 divisors (see below), whose sum is σ = 838003320. Its totient is φ = 798098320.

The previous prime is 818050817. The next prime is 818050843. The reversal of 818050819 is 918050818.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918050818 = 2 ⋅459025409.

It is a cyclic number.

It is not a de Polignac number, because 818050819 - 2¹ = 818050817 is a prime.

It is a super-2 number, since 2×818050819² = 1338414284933141522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818050811) 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, 9976189 + ... + 9976270.

It is an arithmetic number, because the mean of its divisors is an integer number (209500830).

Almost surely, 2^818050819 is an apocalyptic number.

818050819 is a deficient number, since it is larger than the sum of its proper divisors (19952501).

818050819 is a wasteful number, since it uses less digits than its factorization.

818050819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19952500.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 818050819 is about 28601.5877006854. The cubic root of 818050819 is about 935.2479420998.

Subtracting 818050819 from its reverse (918050818), we obtain a palindrome (99999999).

The spelling of 818050819 in words is "eight hundred eighteen million, fifty thousand, eight hundred nineteen".