28204822439 has 2 divisors, whose sum is σ = 28204822440. Its totient is φ = 28204822438.

The previous prime is 28204822391. The next prime is 28204822483. The reversal of 28204822439 is 93422840282.

It is an a-pointer prime, because the next prime (28204822483) can be obtained adding 28204822439 to its sum of digits (44).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28204822439 - 2³² = 23909855143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28204822439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28204822489) 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 as a sum of consecutive naturals, namely, 14102411219 + 14102411220.

It is an arithmetic number, because the mean of its divisors is an integer number (14102411220).

Almost surely, 2^28204822439 is an apocalyptic number.

28204822439 is a deficient number, since it is larger than the sum of its proper divisors (1).

28204822439 is an equidigital number, since it uses as much as digits as its factorization.

28204822439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 28204822439 in words is "twenty-eight billion, two hundred four million, eight hundred twenty-two thousand, four hundred thirty-nine".