17011605745447 has 4 divisors (see below), whose sum is σ = 17906953416280. Its totient is φ = 16116258074616.

The previous prime is 17011605745417. The next prime is 17011605745469. The reversal of 17011605745447 is 74454750611071.

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 17011605745447 - 2¹¹ = 17011605743399 is a prime.

It is a super-2 number, since 2×17011605745447² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17011605745394 and 17011605745403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17011605745417) 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, 447673835388 + ... + 447673835425.

It is an arithmetic number, because the mean of its divisors is an integer number (4476738354070).

Almost surely, 2^{17011605745447} is an apocalyptic number.

17011605745447 is a deficient number, since it is larger than the sum of its proper divisors (895347670833).

17011605745447 is an equidigital number, since it uses as much as digits as its factorization.

17011605745447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895347670832.

The product of its (nonzero) digits is 3292800, while the sum is 52.

The spelling of 17011605745447 in words is "seventeen trillion, eleven billion, six hundred five million, seven hundred forty-five thousand, four hundred forty-seven".