22000579789 has 2 divisors, whose sum is σ = 22000579790. Its totient is φ = 22000579788.

The previous prime is 22000579763. The next prime is 22000579817. The reversal of 22000579789 is 98797500022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12714366564 + 9286213225 = 112758^2 + 96365^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000579789 - 2⁷ = 22000579661 is a prime.

It is a super-3 number, since 3×22000579789³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000579739) 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, 11000289894 + 11000289895.

It is an arithmetic number, because the mean of its divisors is an integer number (11000289895).

Almost surely, 2^22000579789 is an apocalyptic number.

It is an amenable number.

22000579789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000579789 is an equidigital number, since it uses as much as digits as its factorization.

22000579789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 22000579789 in words is "twenty-two billion, five hundred seventy-nine thousand, seven hundred eighty-nine".