85391869269 has 32 divisors (see below), whose sum is σ = 130747961344. Its totient is φ = 48560497920.

The previous prime is 85391869247. The next prime is 85391869289. The reversal of 85391869269 is 96296819358.

It is not a de Polignac number, because 85391869269 - 2¹³ = 85391861077 is a prime.

It is a super-2 number, since 2×85391869269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85391869289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9019032 + ... + 9028494.

It is an arithmetic number, because the mean of its divisors is an integer number (4085873792).

Almost surely, 2^85391869269 is an apocalyptic number.

It is an amenable number.

85391869269 is a deficient number, since it is larger than the sum of its proper divisors (45356092075).

85391869269 is a wasteful number, since it uses less digits than its factorization.

85391869269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11497.

The product of its digits is 50388480, while the sum is 66.

The spelling of 85391869269 in words is "eighty-five billion, three hundred ninety-one million, eight hundred sixty-nine thousand, two hundred sixty-nine".