28028219075 has 12 divisors (see below), whose sum is σ = 36584202360. Its totient is φ = 21242439360.

The previous prime is 28028219041. The next prime is 28028219123. The reversal of 28028219075 is 57091282082.

It is not a de Polignac number, because 28028219075 - 2²⁸ = 27759783619 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29502914 + ... + 29503863.

It is an arithmetic number, because the mean of its divisors is an integer number (3048683530).

Almost surely, 2^28028219075 is an apocalyptic number.

28028219075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28028219075 is a deficient number, since it is larger than the sum of its proper divisors (8555983285).

28028219075 is a wasteful number, since it uses less digits than its factorization.

28028219075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59006806 (or 59006801 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 28028219075 in words is "twenty-eight billion, twenty-eight million, two hundred nineteen thousand, seventy-five".