28041647858 has 16 divisors (see below), whose sum is σ = 48073603200. Its totient is φ = 12017297376.

The previous prime is 28041647833. The next prime is 28041647861. The reversal of 28041647858 is 85874614082.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468035 + ... + 524537.

It is an arithmetic number, because the mean of its divisors is an integer number (3004600200).

Almost surely, 2^28041647858 is an apocalyptic number.

28041647858 is a deficient number, since it is larger than the sum of its proper divisors (20031955342).

28041647858 is a wasteful number, since it uses less digits than its factorization.

28041647858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91961.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 28041647858 in words is "twenty-eight billion, forty-one million, six hundred forty-seven thousand, eight hundred fifty-eight".