85169388311 has 16 divisors (see below), whose sum is σ = 100787323200. Its totient is φ = 70418896128.

The previous prime is 85169388301. The next prime is 85169388349. The reversal of 85169388311 is 11388396158.

It is not a de Polignac number, because 85169388311 - 2¹⁸ = 85169126167 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 (85169388301) 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 15 ways as a sum of consecutive naturals, for example, 20771 + ... + 413243.

It is an arithmetic number, because the mean of its divisors is an integer number (6299207700).

Almost surely, 2^85169388311 is an apocalyptic number.

85169388311 is a deficient number, since it is larger than the sum of its proper divisors (15617934889).

85169388311 is a wasteful number, since it uses less digits than its factorization.

85169388311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393578.

The product of its digits is 1244160, while the sum is 53.

The spelling of 85169388311 in words is "eighty-five billion, one hundred sixty-nine million, three hundred eighty-eight thousand, three hundred eleven".