28064605211 has 4 divisors (see below), whose sum is σ = 28064963400. Its totient is φ = 28064247024.

The previous prime is 28064605181. The next prime is 28064605213. The reversal of 28064605211 is 11250646082.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28064605211 - 2⁶ = 28064605147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28064605213) 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, 5441 + ... + 236978.

It is an arithmetic number, because the mean of its divisors is an integer number (7016240850).

Almost surely, 2^28064605211 is an apocalyptic number.

28064605211 is a deficient number, since it is larger than the sum of its proper divisors (358189).

28064605211 is a wasteful number, since it uses less digits than its factorization.

28064605211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358188.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 28064605211 in words is "twenty-eight billion, sixty-four million, six hundred five thousand, two hundred eleven".