27172001871717 has 8 divisors (see below), whose sum is σ = 36229689520320. Its totient is φ = 18114491068800.

The previous prime is 27172001871701. The next prime is 27172001871797. The reversal of 27172001871717 is 71717810027172.

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

It is not a de Polignac number, because 27172001871717 - 2⁴ = 27172001871701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27172001871717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27172001871797) 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, 43852492 + ... + 44467797.

It is an arithmetic number, because the mean of its divisors is an integer number (4528711190040).

Almost surely, 2^{27172001871717} is an apocalyptic number.

It is an amenable number.

27172001871717 is a deficient number, since it is larger than the sum of its proper divisors (9057687648603).

27172001871717 is a wasteful number, since it uses less digits than its factorization.

27172001871717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88422843.

The product of its (nonzero) digits is 537824, while the sum is 51.

Adding to 27172001871717 its reverse (71717810027172), we get a palindrome (98889811898889).

The spelling of 27172001871717 in words is "twenty-seven trillion, one hundred seventy-two billion, one million, eight hundred seventy-one thousand, seven hundred seventeen".