28285474186 has 8 divisors (see below), whose sum is σ = 42435565344. Its totient is φ = 14140285740.

The previous prime is 28285474169. The next prime is 28285474201. The reversal of 28285474186 is 68147458282.

28285474186 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1211220 + ... + 1234351.

It is an arithmetic number, because the mean of its divisors is an integer number (5304445668).

Almost surely, 2^28285474186 is an apocalyptic number.

28285474186 is a deficient number, since it is larger than the sum of its proper divisors (14150091158).

28285474186 is a wasteful number, since it uses less digits than its factorization.

28285474186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451356.

The product of its digits is 6881280, while the sum is 55.

The spelling of 28285474186 in words is "twenty-eight billion, two hundred eighty-five million, four hundred seventy-four thousand, one hundred eighty-six".