171268078585 has 4 divisors (see below), whose sum is σ = 205521694308. Its totient is φ = 137014462864.

The previous prime is 171268078573. The next prime is 171268078607. The reversal of 171268078585 is 585870862171.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66843448681 + 104424629904 = 258541^2 + 323148^2 .

It is a cyclic number.

It is not a de Polignac number, because 171268078585 - 2⁹ = 171268078073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17126807854 + ... + 17126807863.

It is an arithmetic number, because the mean of its divisors is an integer number (51380423577).

Almost surely, 2^171268078585 is an apocalyptic number.

It is an amenable number.

171268078585 is a deficient number, since it is larger than the sum of its proper divisors (34253615723).

171268078585 is an equidigital number, since it uses as much as digits as its factorization.

171268078585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34253615722.

The product of its (nonzero) digits is 7526400, while the sum is 58.

The spelling of 171268078585 in words is "one hundred seventy-one billion, two hundred sixty-eight million, seventy-eight thousand, five hundred eighty-five".