85091750185 has 16 divisors (see below), whose sum is σ = 109973552976. Its totient is φ = 62831939328.

The previous prime is 85091750171. The next prime is 85091750197. The reversal of 85091750185 is 58105719058.

It can be written as a sum of positive squares in 8 ways, for example, as 26786886889 + 58304863296 = 163667^2 + 241464^2 .

It is a cyclic number.

It is not a de Polignac number, because 85091750185 - 2⁷ = 85091750057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893067 + ... + 983743.

It is an arithmetic number, because the mean of its divisors is an integer number (6873347061).

Almost surely, 2^85091750185 is an apocalyptic number.

It is an amenable number.

85091750185 is a deficient number, since it is larger than the sum of its proper divisors (24881802791).

85091750185 is a wasteful number, since it uses less digits than its factorization.

85091750185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105132.

The product of its (nonzero) digits is 504000, while the sum is 49.

The spelling of 85091750185 in words is "eighty-five billion, ninety-one million, seven hundred fifty thousand, one hundred eighty-five".