22426785561 has 8 divisors (see below), whose sum is σ = 29904901024. Its totient is φ = 14949930240.

The previous prime is 22426785539. The next prime is 22426785599. The reversal of 22426785561 is 16558762422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22426785561 - 2¹⁰ = 22426784537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22426785561.

It is not an unprimeable number, because it can be changed into a prime (22426780561) 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 7 ways as a sum of consecutive naturals, for example, 272695 + ... + 345276.

It is an arithmetic number, because the mean of its divisors is an integer number (3738112628).

Almost surely, 2^22426785561 is an apocalyptic number.

It is an amenable number.

22426785561 is a deficient number, since it is larger than the sum of its proper divisors (7478115463).

22426785561 is a wasteful number, since it uses less digits than its factorization.

22426785561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630071.

The product of its digits is 1612800, while the sum is 48.

The spelling of 22426785561 in words is "twenty-two billion, four hundred twenty-six million, seven hundred eighty-five thousand, five hundred sixty-one".