2009069668 has 6 divisors (see below), whose sum is σ = 3515871926. Its totient is φ = 1004534832.

The previous prime is 2009069653. The next prime is 2009069681. The reversal of 2009069668 is 8669609002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1911613284 + 97456384 = 43722^2 + 9872^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251133705 + ... + 251133712.

Almost surely, 2^2009069668 is an apocalyptic number.

It is an amenable number.

2009069668 is a deficient number, since it is larger than the sum of its proper divisors (1506802258).

2009069668 is a wasteful number, since it uses less digits than its factorization.

2009069668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502267421 (or 502267419 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 2009069668 is about 44822.6468205527. The cubic root of 2009069668 is about 1261.8226891837.

The spelling of 2009069668 in words is "two billion, nine million, sixty-nine thousand, six hundred sixty-eight".