28393708166 has 16 divisors (see below), whose sum is σ = 43858971024. Its totient is φ = 13776109344.

The previous prime is 28393708153. The next prime is 28393708183. The reversal of 28393708166 is 66180739382.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 7 ways as a sum of consecutive naturals, for example, 486740 + ... + 541943.

It is an arithmetic number, because the mean of its divisors is an integer number (2741185689).

Almost surely, 2^28393708166 is an apocalyptic number.

28393708166 is a deficient number, since it is larger than the sum of its proper divisors (15465262858).

28393708166 is a wasteful number, since it uses less digits than its factorization.

28393708166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029095.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 28393708166 in words is "twenty-eight billion, three hundred ninety-three million, seven hundred eight thousand, one hundred sixty-six".