22821238439 has 2 divisors, whose sum is σ = 22821238440. Its totient is φ = 22821238438.

The previous prime is 22821238421. The next prime is 22821238459. The reversal of 22821238439 is 93483212822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22821238439 - 2¹⁶ = 22821172903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22821238439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22821238459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11410619219 + 11410619220.

It is an arithmetic number, because the mean of its divisors is an integer number (11410619220).

Almost surely, 2^22821238439 is an apocalyptic number.

22821238439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22821238439 is an equidigital number, since it uses as much as digits as its factorization.

22821238439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The spelling of 22821238439 in words is "twenty-two billion, eight hundred twenty-one million, two hundred thirty-eight thousand, four hundred thirty-nine".