85805572778334 has 24 divisors (see below), whose sum is σ = 185950101149280. Its totient is φ = 28596007316448.

The previous prime is 85805572778311. The next prime is 85805572778339. The reversal of 85805572778334 is 43387727550858.

85805572778334 is a `hidden beast` number, since 8 + 580 + 5 + 5 + 7 + 2 + 7 + 7 + 8 + 3 + 34 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85805572778339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487432582 + ... + 487608585.

It is an arithmetic number, because the mean of its divisors is an integer number (7747920881220).

Almost surely, 2^{85805572778334} is an apocalyptic number.

85805572778334 is an abundant number, since it is smaller than the sum of its proper divisors (100144528370946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85805572778334 is a wasteful number, since it uses less digits than its factorization.

85805572778334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975046064 (or 975046061 counting only the distinct ones).

The product of its (nonzero) digits is 1580544000, while the sum is 72.

The spelling of 85805572778334 in words is "eighty-five trillion, eight hundred five billion, five hundred seventy-two million, seven hundred seventy-eight thousand, three hundred thirty-four".