28867356068 has 12 divisors (see below), whose sum is σ = 50526037212. Its totient is φ = 14431345440.

The previous prime is 28867356043. The next prime is 28867356071. The reversal of 28867356068 is 86065376882.

It can be written as a sum of positive squares in 2 ways, for example, as 381342784 + 28486013284 = 19528^2 + 168778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28867355998 and 28867356016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555155 + ... + 604922.

It is an arithmetic number, because the mean of its divisors is an integer number (4210503101).

Almost surely, 2^28867356068 is an apocalyptic number.

It is an amenable number.

28867356068 is a deficient number, since it is larger than the sum of its proper divisors (21658681144).

28867356068 is a wasteful number, since it uses less digits than its factorization.

28867356068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166302 (or 1166300 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 28867356068 in words is "twenty-eight billion, eight hundred sixty-seven million, three hundred fifty-six thousand, sixty-eight".