22617421745 has 8 divisors (see below), whose sum is σ = 27354614784. Its totient is φ = 17951464944.

The previous prime is 22617421709. The next prime is 22617421747. The reversal of 22617421745 is 54712471622.

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

It is a cyclic number.

It is not a de Polignac number, because 22617421745 - 2⁶ = 22617421681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22617421747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17808359 + ... + 17809628.

It is an arithmetic number, because the mean of its divisors is an integer number (3419326848).

Almost surely, 2^22617421745 is an apocalyptic number.

It is an amenable number.

22617421745 is a deficient number, since it is larger than the sum of its proper divisors (4737193039).

22617421745 is a wasteful number, since it uses less digits than its factorization.

22617421745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35618119.

The product of its digits is 188160, while the sum is 41.

The spelling of 22617421745 in words is "twenty-two billion, six hundred seventeen million, four hundred twenty-one thousand, seven hundred forty-five".