2009069864 has 16 divisors (see below), whose sum is σ = 3858884820. Its totient is φ = 980033920.

The previous prime is 2009069857. The next prime is 2009069869. The reversal of 2009069864 is 4689609002.

It can be written as a sum of positive squares in 2 ways, for example, as 1654048900 + 355020964 = 40670^2 + 18842^2 .

It is not an unprimeable number, because it can be changed into a prime (2009069869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062279 + ... + 3062934.

Almost surely, 2^2009069864 is an apocalyptic number.

It is an amenable number.

2009069864 is a deficient number, since it is larger than the sum of its proper divisors (1849814956).

2009069864 is a wasteful number, since it uses less digits than its factorization.

2009069864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125260 (or 6125256 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 2009069864 is about 44822.6490069474. The cubic root of 2009069864 is about 1261.8227302172.

The spelling of 2009069864 in words is "two billion, nine million, sixty-nine thousand, eight hundred sixty-four".