85718437159 has 16 divisors (see below), whose sum is σ = 87586725600. Its totient is φ = 83859857536.

The previous prime is 85718437157. The next prime is 85718437193. The reversal of 85718437159 is 95173481758.

It is a cyclic number.

It is not a de Polignac number, because 85718437159 - 2¹ = 85718437157 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 (85718437157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38732937 + ... + 38735149.

It is an arithmetic number, because the mean of its divisors is an integer number (5474170350).

Almost surely, 2^85718437159 is an apocalyptic number.

85718437159 is a deficient number, since it is larger than the sum of its proper divisors (1868288441).

85718437159 is a wasteful number, since it uses less digits than its factorization.

85718437159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034.

The product of its digits is 8467200, while the sum is 58.

The spelling of 85718437159 in words is "eighty-five billion, seven hundred eighteen million, four hundred thirty-seven thousand, one hundred fifty-nine".