28159390092 has 12 divisors (see below), whose sum is σ = 65705243576. Its totient is φ = 9386463360.

The previous prime is 28159390057. The next prime is 28159390099. The reversal of 28159390092 is 29009395182.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28159390099) 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 3 ways as a sum of consecutive naturals, for example, 1173307909 + ... + 1173307932.

Almost surely, 2^28159390092 is an apocalyptic number.

It is an amenable number.

28159390092 is an abundant number, since it is smaller than the sum of its proper divisors (37545853484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28159390092 is a wasteful number, since it uses less digits than its factorization.

28159390092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346615848 (or 2346615846 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 28159390092 in words is "twenty-eight billion, one hundred fifty-nine million, three hundred ninety thousand, ninety-two".