812111694 has 16 divisors (see below), whose sum is σ = 1639125840. Its totient is φ = 268220160.

The previous prime is 812111683. The next prime is 812111701. The reversal of 812111694 is 496111218.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 620227 + ... + 621534.

It is an arithmetic number, because the mean of its divisors is an integer number (102445365).

Almost surely, 2^812111694 is an apocalyptic number.

812111694 is an abundant number, since it is smaller than the sum of its proper divisors (827014146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812111694 is a wasteful number, since it uses less digits than its factorization.

812111694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241875.

The product of its digits is 3456, while the sum is 33.

The square root of 812111694 is about 28497.5734756488. The cubic root of 812111694 is about 932.9791135706.

The spelling of 812111694 in words is "eight hundred twelve million, one hundred eleven thousand, six hundred ninety-four".