10663939209 has 96 divisors (see below), whose sum is σ = 18538455040. Its totient is φ = 5331744000.

The previous prime is 10663939177. The next prime is 10663939211. The reversal of 10663939209 is 90293936601.

It is a happy number.

It is not a de Polignac number, because 10663939209 - 2⁵ = 10663939177 is a prime.

It is a super-2 number, since 2×10663939209² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10663939219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26072997 + ... + 26073405.

Almost surely, 2^10663939209 is an apocalyptic number.

It is an amenable number.

10663939209 is a deficient number, since it is larger than the sum of its proper divisors (7874515831).

10663939209 is a wasteful number, since it uses less digits than its factorization.

10663939209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 48.

The spelling of 10663939209 in words is "ten billion, six hundred sixty-three million, nine hundred thirty-nine thousand, two hundred nine".