85771368159 has 8 divisors (see below), whose sum is σ = 115809442560. Its totient is φ = 56457102936.

The previous prime is 85771368157. The next prime is 85771368181. The reversal of 85771368159 is 95186317758.

It is a happy number.

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

It is not a de Polignac number, because 85771368159 - 2¹ = 85771368157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85771368157) 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, 180952017 + ... + 180952490.

It is an arithmetic number, because the mean of its divisors is an integer number (14476180320).

Almost surely, 2^85771368159 is an apocalyptic number.

85771368159 is a deficient number, since it is larger than the sum of its proper divisors (30038074401).

85771368159 is a wasteful number, since it uses less digits than its factorization.

85771368159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361904589.

The product of its digits is 12700800, while the sum is 60.

The spelling of 85771368159 in words is "eighty-five billion, seven hundred seventy-one million, three hundred sixty-eight thousand, one hundred fifty-nine".