811031604019 has 32 divisors (see below), whose sum is σ = 1051327226880. Its totient is φ = 608058963072.

The previous prime is 811031603983. The next prime is 811031604041. The reversal of 811031604019 is 910406130118.

It is a cyclic number.

It is not a de Polignac number, because 811031604019 - 2⁹ = 811031603507 is a prime.

It is a super-2 number, since 2×811031604019² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (811031604419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1586784 + ... + 2034685.

It is an arithmetic number, because the mean of its divisors is an integer number (32853975840).

Almost surely, 2^811031604019 is an apocalyptic number.

811031604019 is a deficient number, since it is larger than the sum of its proper divisors (240295622861).

811031604019 is a wasteful number, since it uses less digits than its factorization.

811031604019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621619.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 811031604019 in words is "eight hundred eleven billion, thirty-one million, six hundred four thousand, nineteen".