16938863886 has 32 divisors (see below), whose sum is σ = 40994899200. Its totient is φ = 4554988416.

The previous prime is 16938863839. The next prime is 16938863891. The reversal of 16938863886 is 68836883961.

It is a happy number.

16938863886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11861236 + ... + 11862663.

It is an arithmetic number, because the mean of its divisors is an integer number (1281090600).

Almost surely, 2^16938863886 is an apocalyptic number.

16938863886 is an abundant number, since it is smaller than the sum of its proper divisors (24056035314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16938863886 is a wasteful number, since it uses less digits than its factorization.

16938863886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23723928.

The product of its digits is 71663616, while the sum is 66.

The spelling of 16938863886 in words is "sixteen billion, nine hundred thirty-eight million, eight hundred sixty-three thousand, eight hundred eighty-six".