28006219185 has 32 divisors (see below), whose sum is σ = 51231502080. Its totient is φ = 12797810688.

The previous prime is 28006219177. The next prime is 28006219193. The reversal of 28006219185 is 58191260082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28006219177) and next prime (28006219193).

It is not a de Polignac number, because 28006219185 - 2³ = 28006219177 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 222829 + ... + 325061.

It is an arithmetic number, because the mean of its divisors is an integer number (1600984440).

Almost surely, 2^28006219185 is an apocalyptic number.

It is an amenable number.

28006219185 is a deficient number, since it is larger than the sum of its proper divisors (23225282895).

28006219185 is a wasteful number, since it uses less digits than its factorization.

28006219185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104857.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 28006219185 in words is "twenty-eight billion, six million, two hundred nineteen thousand, one hundred eighty-five".