28168295568366 has 16 divisors (see below), whose sum is σ = 56546020846800. Its totient is φ = 9354526904448.

The previous prime is 28168295568359. The next prime is 28168295568409. The reversal of 28168295568366 is 66386559286182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8726236171 + ... + 8726239398.

It is an arithmetic number, because the mean of its divisors is an integer number (3534126302925).

Almost surely, 2^{28168295568366} is an apocalyptic number.

28168295568366 is an abundant number, since it is smaller than the sum of its proper divisors (28377725278434).

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

28168295568366 is a wasteful number, since it uses less digits than its factorization.

28168295568366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17452475843.

The product of its digits is 1791590400, while the sum is 75.

The spelling of 28168295568366 in words is "twenty-eight trillion, one hundred sixty-eight billion, two hundred ninety-five million, five hundred sixty-eight thousand, three hundred sixty-six".