85539356722 has 16 divisors (see below), whose sum is σ = 139528428120. Its totient is φ = 39165873408.

The previous prime is 85539356689. The next prime is 85539356723. The reversal of 85539356722 is 22765393558.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79822635841 + 5716720881 = 282529^2 + 75609^2 .

It is not an unprimeable number, because it can be changed into a prime (85539356723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33996897 + ... + 33999412.

Almost surely, 2^85539356722 is an apocalyptic number.

85539356722 is a deficient number, since it is larger than the sum of its proper divisors (53989071398).

85539356722 is a wasteful number, since it uses less digits than its factorization.

85539356722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67996365.

The product of its digits is 13608000, while the sum is 55.

The spelling of 85539356722 in words is "eighty-five billion, five hundred thirty-nine million, three hundred fifty-six thousand, seven hundred twenty-two".