16423194217 has 8 divisors (see below), whose sum is σ = 17613754560. Its totient is φ = 15265252080.

The previous prime is 16423194173. The next prime is 16423194239. The reversal of 16423194217 is 71249132461.

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

It is not a de Polignac number, because 16423194217 - 2⁷ = 16423194089 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 16423194217.

It is not an unprimeable number, because it can be changed into a prime (16423194317) 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, 8153509 + ... + 8155522.

It is an arithmetic number, because the mean of its divisors is an integer number (2201719320).

Almost surely, 2^16423194217 is an apocalyptic number.

It is an amenable number.

16423194217 is a deficient number, since it is larger than the sum of its proper divisors (1190560343).

16423194217 is a wasteful number, since it uses less digits than its factorization.

16423194217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16309103.

The product of its digits is 72576, while the sum is 40.

The spelling of 16423194217 in words is "sixteen billion, four hundred twenty-three million, one hundred ninety-four thousand, two hundred seventeen".