811044819 has 48 divisors (see below), whose sum is σ = 1326651872. Its totient is φ = 492127488.

The previous prime is 811044809. The next prime is 811044833. The reversal of 811044819 is 918440118.

It is not a de Polignac number, because 811044819 - 2⁹ = 811044307 is a prime.

It is a super-2 number, since 2×811044819² = 1315587396853485522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (811044809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228849 + ... + 232365.

Almost surely, 2^811044819 is an apocalyptic number.

811044819 is a deficient number, since it is larger than the sum of its proper divisors (515607053).

811044819 is a wasteful number, since it uses less digits than its factorization.

811044819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3606 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 811044819 is about 28478.8486249006. The cubic root of 811044819 is about 932.5703814990.

The spelling of 811044819 in words is "eight hundred eleven million, forty-four thousand, eight hundred nineteen".