28279225090186 has 16 divisors (see below), whose sum is σ = 48479075720064. Its totient is φ = 12119566861584.

The previous prime is 28279225090163. The next prime is 28279225090189. The reversal of 28279225090186 is 68109052297282.

It is not an unprimeable number, because it can be changed into a prime (28279225090189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6667585 + ... + 10050628.

It is an arithmetic number, because the mean of its divisors is an integer number (3029942232504).

Almost surely, 2^{28279225090186} is an apocalyptic number.

28279225090186 is a deficient number, since it is larger than the sum of its proper divisors (20199850629878).

28279225090186 is a wasteful number, since it uses less digits than its factorization.

28279225090186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16839045.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 28279225090186 in words is "twenty-eight trillion, two hundred seventy-nine billion, two hundred twenty-five million, ninety thousand, one hundred eighty-six".