28218452839 has 2 divisors, whose sum is σ = 28218452840. Its totient is φ = 28218452838.

The previous prime is 28218452837. The next prime is 28218452849. The reversal of 28218452839 is 93825481282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28218452839 - 2¹ = 28218452837 is a prime.

Together with 28218452837, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28218452831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14109226419 + 14109226420.

It is an arithmetic number, because the mean of its divisors is an integer number (14109226420).

Almost surely, 2^28218452839 is an apocalyptic number.

28218452839 is a deficient number, since it is larger than the sum of its proper divisors (1).

28218452839 is an equidigital number, since it uses as much as digits as its factorization.

28218452839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 52.

The spelling of 28218452839 in words is "twenty-eight billion, two hundred eighteen million, four hundred fifty-two thousand, eight hundred thirty-nine".