8664069812 has 12 divisors (see below), whose sum is σ = 15684954180. Its totient is φ = 4182654336.

The previous prime is 8664069803. The next prime is 8664069823. The reversal of 8664069812 is 2189604668.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4932814756 + 3731255056 = 70234^2 + 61084^2 .

It is a super-2 number, since 2×8664069812² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37345013 + ... + 37345244.

It is an arithmetic number, because the mean of its divisors is an integer number (1307079515).

Almost surely, 2^8664069812 is an apocalyptic number.

It is an amenable number.

8664069812 is a deficient number, since it is larger than the sum of its proper divisors (7020884368).

8664069812 is a wasteful number, since it uses less digits than its factorization.

8664069812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74690290 (or 74690288 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 8664069812 is about 93080.9852332903. The cubic root of 8664069812 is about 2053.8748692412.

The spelling of 8664069812 in words is "eight billion, six hundred sixty-four million, sixty-nine thousand, eight hundred twelve".