85516705727 has 4 divisors (see below), whose sum is σ = 85523310600. Its totient is φ = 85510100856.

The previous prime is 85516705663. The next prime is 85516705733. The reversal of 85516705727 is 72750761558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85516705727 - 2⁶ = 85516705663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85516705777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3282977 + ... + 3308922.

It is an arithmetic number, because the mean of its divisors is an integer number (21380827650).

Almost surely, 2^85516705727 is an apocalyptic number.

85516705727 is a deficient number, since it is larger than the sum of its proper divisors (6604873).

85516705727 is a wasteful number, since it uses less digits than its factorization.

85516705727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604872.

The product of its (nonzero) digits is 4116000, while the sum is 53.

The spelling of 85516705727 in words is "eighty-five billion, five hundred sixteen million, seven hundred five thousand, seven hundred twenty-seven".