17085316447 has 4 divisors (see below), whose sum is σ = 17674465320. Its totient is φ = 16496167576.

The previous prime is 17085316429. The next prime is 17085316459. The reversal of 17085316447 is 74461358071.

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

It is a cyclic number.

It is not a de Polignac number, because 17085316447 - 2²⁷ = 16951098719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17085316397 and 17085316406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17085316747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294574393 + ... + 294574450.

It is an arithmetic number, because the mean of its divisors is an integer number (4418616330).

Almost surely, 2^17085316447 is an apocalyptic number.

17085316447 is a deficient number, since it is larger than the sum of its proper divisors (589148873).

17085316447 is an equidigital number, since it uses as much as digits as its factorization.

17085316447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589148872.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 17085316447 in words is "seventeen billion, eighty-five million, three hundred sixteen thousand, four hundred forty-seven".