85335252779 has 6 divisors (see below), whose sum is σ = 99267539004. Its totient is φ = 73144502340.

The previous prime is 85335252731. The next prime is 85335252811. The reversal of 85335252779 is 97725253358.

It is not a de Polignac number, because 85335252779 - 2³² = 81040285483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85335252979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 870767837 + ... + 870767934.

It is an arithmetic number, because the mean of its divisors is an integer number (16544589834).

Almost surely, 2^85335252779 is an apocalyptic number.

85335252779 is a deficient number, since it is larger than the sum of its proper divisors (13932286225).

85335252779 is a wasteful number, since it uses less digits than its factorization.

85335252779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741535785 (or 1741535778 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 56.

The spelling of 85335252779 in words is "eighty-five billion, three hundred thirty-five million, two hundred fifty-two thousand, seven hundred seventy-nine".