85517526389 has 8 divisors (see below), whose sum is σ = 88003440000. Its totient is φ = 83040803856.

The previous prime is 85517526371. The next prime is 85517526401. The reversal of 85517526389 is 98362571558.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85517526389 is a prime.

It is a super-2 number, since 2×85517526389² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85517516389) 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, 2278889 + ... + 2316110.

It is an arithmetic number, because the mean of its divisors is an integer number (11000430000).

Almost surely, 2^85517526389 is an apocalyptic number.

It is an amenable number.

85517526389 is a deficient number, since it is larger than the sum of its proper divisors (2485913611).

85517526389 is a wasteful number, since it uses less digits than its factorization.

85517526389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595539.

The product of its digits is 18144000, while the sum is 59.

The spelling of 85517526389 in words is "eighty-five billion, five hundred seventeen million, five hundred twenty-six thousand, three hundred eighty-nine".