811113489 has 12 divisors (see below), whose sum is σ = 1178626176. Its totient is φ = 537503352.

The previous prime is 811113487. The next prime is 811113493. The reversal of 811113489 is 984311118.

It is not a de Polignac number, because 811113489 - 2¹ = 811113487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (811113487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268329 + ... + 271334.

It is an arithmetic number, because the mean of its divisors is an integer number (98218848).

Almost surely, 2^811113489 is an apocalyptic number.

It is an amenable number.

811113489 is a deficient number, since it is larger than the sum of its proper divisors (367512687).

811113489 is a wasteful number, since it uses less digits than its factorization.

811113489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539836 (or 539833 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 811113489 is about 28480.0542309877. The cubic root of 811113489 is about 932.5967005545.

The spelling of 811113489 in words is "eight hundred eleven million, one hundred thirteen thousand, four hundred eighty-nine".