868569812 has 24 divisors (see below), whose sum is σ = 1661052960. Its totient is φ = 394120160.

The previous prime is 868569791. The next prime is 868569817. The reversal of 868569812 is 218965868.

868569812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868569817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9014 + ... + 42642.

It is an arithmetic number, because the mean of its divisors is an integer number (69210540).

Almost surely, 2^868569812 is an apocalyptic number.

It is an amenable number.

868569812 is a deficient number, since it is larger than the sum of its proper divisors (792483148).

868569812 is a wasteful number, since it uses less digits than its factorization.

868569812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34231 (or 34229 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 53.

The square root of 868569812 is about 29471.5084785289. The cubic root of 868569812 is about 954.1168748102.

The spelling of 868569812 in words is "eight hundred sixty-eight million, five hundred sixty-nine thousand, eight hundred twelve".