28568476168 has 8 divisors (see below), whose sum is σ = 53565892830. Its totient is φ = 14284238080.

The previous prime is 28568476129. The next prime is 28568476169. The reversal of 28568476168 is 86167486582.

It can be written as a sum of positive squares in only one way, i.e., 17025552324 + 11542923844 = 130482^2 + 107438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28568476169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785529753 + ... + 1785529768.

Almost surely, 2^28568476168 is an apocalyptic number.

It is an amenable number.

28568476168 is a deficient number, since it is larger than the sum of its proper divisors (24997416662).

28568476168 is a wasteful number, since it uses less digits than its factorization.

28568476168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571059527 (or 3571059523 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 61.

The spelling of 28568476168 in words is "twenty-eight billion, five hundred sixty-eight million, four hundred seventy-six thousand, one hundred sixty-eight".