28342766827 has 4 divisors (see below), whose sum is σ = 28364453496. Its totient is φ = 28321080160.

The previous prime is 28342766813. The next prime is 28342766833. The reversal of 28342766827 is 72866724382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28342766827 - 2²⁷ = 28208549099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28342766897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10841374 + ... + 10843987.

It is an arithmetic number, because the mean of its divisors is an integer number (7091113374).

Almost surely, 2^28342766827 is an apocalyptic number.

28342766827 is a deficient number, since it is larger than the sum of its proper divisors (21686669).

28342766827 is a wasteful number, since it uses less digits than its factorization.

28342766827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21686668.

The product of its digits is 10838016, while the sum is 55.

The spelling of 28342766827 in words is "twenty-eight billion, three hundred forty-two million, seven hundred sixty-six thousand, eight hundred twenty-seven".