28028219086 has 8 divisors (see below), whose sum is σ = 48048375600. Its totient is φ = 12012093888.

The previous prime is 28028219041. The next prime is 28028219123. The reversal of 28028219086 is 68091282082.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1001007811 + ... + 1001007838.

It is an arithmetic number, because the mean of its divisors is an integer number (6006046950).

Almost surely, 2^28028219086 is an apocalyptic number.

28028219086 is a deficient number, since it is larger than the sum of its proper divisors (20020156514).

28028219086 is a wasteful number, since it uses less digits than its factorization.

28028219086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002015658.

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 28028219086 in words is "twenty-eight billion, twenty-eight million, two hundred nineteen thousand, eighty-six".