22194430917 has 8 divisors (see below), whose sum is σ = 31150078560. Its totient is φ = 14017535280.

The previous prime is 22194430913. The next prime is 22194430927. The reversal of 22194430917 is 71903449122.

It is a happy number.

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

It is not a de Polignac number, because 22194430917 - 2² = 22194430913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22194430913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194687934 + ... + 194688047.

It is an arithmetic number, because the mean of its divisors is an integer number (3893759820).

Almost surely, 2^22194430917 is an apocalyptic number.

It is an amenable number.

22194430917 is a deficient number, since it is larger than the sum of its proper divisors (8955647643).

22194430917 is a wasteful number, since it uses less digits than its factorization.

22194430917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389376003.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 22194430917 in words is "twenty-two billion, one hundred ninety-four million, four hundred thirty thousand, nine hundred seventeen".