28268822204839 has 4 divisors (see below), whose sum is σ = 28543276789456. Its totient is φ = 27994367620224.

The previous prime is 28268822204827. The next prime is 28268822204863. The reversal of 28268822204839 is 93840222886282.

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 28268822204839 - 2⁵ = 28268822204807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28268822204809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137227292154 + ... + 137227292359.

It is an arithmetic number, because the mean of its divisors is an integer number (7135819197364).

Almost surely, 2^{28268822204839} is an apocalyptic number.

28268822204839 is a deficient number, since it is larger than the sum of its proper divisors (274454584617).

28268822204839 is a wasteful number, since it uses less digits than its factorization.

28268822204839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274454584616.

The product of its (nonzero) digits is 84934656, while the sum is 64.

The spelling of 28268822204839 in words is "twenty-eight trillion, two hundred sixty-eight billion, eight hundred twenty-two million, two hundred four thousand, eight hundred thirty-nine".