22135905579 has 4 divisors (see below), whose sum is σ = 29514540776. Its totient is φ = 14757270384.

The previous prime is 22135905557. The next prime is 22135905593. The reversal of 22135905579 is 97550953122.

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

It is not a de Polignac number, because 22135905579 - 2¹² = 22135901483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22135905509) 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 in 3 ways as a sum of consecutive naturals, for example, 3689317594 + ... + 3689317599.

It is an arithmetic number, because the mean of its divisors is an integer number (7378635194).

Almost surely, 2^22135905579 is an apocalyptic number.

22135905579 is a deficient number, since it is larger than the sum of its proper divisors (7378635197).

22135905579 is an equidigital number, since it uses as much as digits as its factorization.

22135905579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378635196.

The product of its (nonzero) digits is 850500, while the sum is 48.

The spelling of 22135905579 in words is "twenty-two billion, one hundred thirty-five million, nine hundred five thousand, five hundred seventy-nine".