28169042282 has 16 divisors (see below), whose sum is σ = 42513285672. Its totient is φ = 13998006720.

The previous prime is 28169042269. The next prime is 28169042311. The reversal of 28169042282 is 28224096182.

It can be written as a sum of positive squares in 4 ways, for example, as 24599099281 + 3569943001 = 156841^2 + 59749^2 .

It is an unprimeable number.

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, 1045808 + ... + 1072404.

Almost surely, 2^28169042282 is an apocalyptic number.

28169042282 is a deficient number, since it is larger than the sum of its proper divisors (14344243390).

28169042282 is a wasteful number, since it uses less digits than its factorization.

28169042282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29833.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 28169042282 in words is "twenty-eight billion, one hundred sixty-nine million, forty-two thousand, two hundred eighty-two".