28030685186 has 16 divisors (see below), whose sum is σ = 48330368064. Its totient is φ = 11943709584.

The previous prime is 28030685173. The next prime is 28030685201. The reversal of 28030685186 is 68158603082.

It is a self number, because there is not a number n which added to its sum of digits gives 28030685186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5784260 + ... + 5789103.

It is an arithmetic number, because the mean of its divisors is an integer number (3020648004).

Almost surely, 2^28030685186 is an apocalyptic number.

28030685186 is a deficient number, since it is larger than the sum of its proper divisors (20299682878).

28030685186 is a wasteful number, since it uses less digits than its factorization.

28030685186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573545.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 28030685186 in words is "twenty-eight billion, thirty million, six hundred eighty-five thousand, one hundred eighty-six".