85717259534 has 8 divisors (see below), whose sum is σ = 128580572880. Its totient is φ = 42857068576.

The previous prime is 85717259531. The next prime is 85717259539. The reversal of 85717259534 is 43595271758.

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

It is a super-2 number, since 2×85717259534² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85717259534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85717259531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710714 + ... + 822525.

It is an arithmetic number, because the mean of its divisors is an integer number (16072571610).

Almost surely, 2^85717259534 is an apocalyptic number.

85717259534 is a deficient number, since it is larger than the sum of its proper divisors (42863313346).

85717259534 is a wasteful number, since it uses less digits than its factorization.

85717259534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561194.

The product of its digits is 10584000, while the sum is 56.

The spelling of 85717259534 in words is "eighty-five billion, seven hundred seventeen million, two hundred fifty-nine thousand, five hundred thirty-four".