28443194858 has 32 divisors (see below), whose sum is σ = 47996928000. Its totient is φ = 12543100416.

The previous prime is 28443194849. The next prime is 28443194947. The reversal of 28443194858 is 85849134482.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529943 + ... + 581141.

It is an arithmetic number, because the mean of its divisors is an integer number (1499904000).

Almost surely, 2^28443194858 is an apocalyptic number.

28443194858 is a deficient number, since it is larger than the sum of its proper divisors (19553733142).

28443194858 is a wasteful number, since it uses less digits than its factorization.

28443194858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52166.

The product of its digits is 8847360, while the sum is 56.

The spelling of 28443194858 in words is "twenty-eight billion, four hundred forty-three million, one hundred ninety-four thousand, eight hundred fifty-eight".