85341432779 has 16 divisors (see below), whose sum is σ = 88046976000. Its totient is φ = 82688164416.

The previous prime is 85341432773. The next prime is 85341432791. The reversal of 85341432779 is 97723414358.

It is a cyclic number.

It is not a de Polignac number, because 85341432779 - 2⁸ = 85341432523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85341432779.

It is not an unprimeable number, because it can be changed into a prime (85341432773) 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, 1110452 + ... + 1184814.

It is an arithmetic number, because the mean of its divisors is an integer number (5502936000).

Almost surely, 2^85341432779 is an apocalyptic number.

85341432779 is a deficient number, since it is larger than the sum of its proper divisors (2705543221).

85341432779 is a wasteful number, since it uses less digits than its factorization.

85341432779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74714.

The product of its digits is 5080320, while the sum is 53.

The spelling of 85341432779 in words is "eighty-five billion, three hundred forty-one million, four hundred thirty-two thousand, seven hundred seventy-nine".