85170971738495 has 8 divisors (see below), whose sum is σ = 103109636583216. Its totient is φ = 67533797059456.

The previous prime is 85170971738491. The next prime is 85170971738507. The reversal of 85170971738495 is 59483717907158.

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

It is a cyclic number.

It is not a de Polignac number, because 85170971738495 - 2² = 85170971738491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85170971738491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75372540797 + ... + 75372541926.

It is an arithmetic number, because the mean of its divisors is an integer number (12888704572902).

Almost surely, 2^{85170971738495} is an apocalyptic number.

85170971738495 is a deficient number, since it is larger than the sum of its proper divisors (17938664844721).

85170971738495 is a wasteful number, since it uses less digits than its factorization.

85170971738495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150745082841.

The product of its (nonzero) digits is 533433600, while the sum is 74.

The spelling of 85170971738495 in words is "eighty-five trillion, one hundred seventy billion, nine hundred seventy-one million, seven hundred thirty-eight thousand, four hundred ninety-five".