85804775278311 has 16 divisors (see below), whose sum is σ = 114660558440064. Its totient is φ = 57076188655584.

The previous prime is 85804775278297. The next prime is 85804775278349. The reversal of 85804775278311 is 11387257740858.

It is not a de Polignac number, because 85804775278311 - 2¹⁷ = 85804775147239 is a prime.

It is a super-2 number, since 2×85804775278311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85804775278381) 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, 9199461 + ... + 16007486.

It is an arithmetic number, because the mean of its divisors is an integer number (7166284902504).

Almost surely, 2^{85804775278311} is an apocalyptic number.

85804775278311 is a deficient number, since it is larger than the sum of its proper divisors (28855783161753).

85804775278311 is a wasteful number, since it uses less digits than its factorization.

85804775278311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25209470.

The product of its (nonzero) digits is 105369600, while the sum is 66.

The spelling of 85804775278311 in words is "eighty-five trillion, eight hundred four billion, seven hundred seventy-five million, two hundred seventy-eight thousand, three hundred eleven".