811828712 has 16 divisors (see below), whose sum is σ = 1524190500. Its totient is φ = 405377920.

The previous prime is 811828681. The next prime is 811828733. The reversal of 811828712 is 217828118.

It can be written as a sum of positive squares in 2 ways, for example, as 603488356 + 208340356 = 24566^2 + 14434^2 .

It is an unprimeable number.

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, 60587 + ... + 72762.

Almost surely, 2^811828712 is an apocalyptic number.

It is an amenable number.

811828712 is a deficient number, since it is larger than the sum of its proper divisors (712361788).

811828712 is a wasteful number, since it uses less digits than its factorization.

811828712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134116 (or 134112 counting only the distinct ones).

The product of its digits is 14336, while the sum is 38.

The square root of 811828712 is about 28492.6080238366. The cubic root of 811828712 is about 932.8707348139.

The spelling of 811828712 in words is "eight hundred eleven million, eight hundred twenty-eight thousand, seven hundred twelve".