28360824644023 has 4 divisors (see below), whose sum is σ = 28363132478320. Its totient is φ = 28358516809728.

The previous prime is 28360824644011. The next prime is 28360824644051. The reversal of 28360824644023 is 32044642806382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28360824644023 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 (28360824644083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153898715 + ... + 1153923292.

It is an arithmetic number, because the mean of its divisors is an integer number (7090783119580).

Almost surely, 2^{28360824644023} is an apocalyptic number.

28360824644023 is a deficient number, since it is larger than the sum of its proper divisors (2307834297).

28360824644023 is a wasteful number, since it uses less digits than its factorization.

28360824644023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307834296.

The product of its (nonzero) digits is 10616832, while the sum is 52.

The spelling of 28360824644023 in words is "twenty-eight trillion, three hundred sixty billion, eight hundred twenty-four million, six hundred forty-four thousand, twenty-three".