850758261085 has 4 divisors (see below), whose sum is σ = 1020909913308. Its totient is φ = 680606608864.

The previous prime is 850758261083. The next prime is 850758261103. The reversal of 850758261085 is 580162857058.

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

It can be written as a sum of positive squares in 2 ways, for example, as 107545299481 + 743212961604 = 327941^2 + 862098^2 .

It is a cyclic number.

It is not a de Polignac number, because 850758261085 - 2¹ = 850758261083 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 (850758261083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85075826104 + ... + 85075826113.

It is an arithmetic number, because the mean of its divisors is an integer number (255227478327).

Almost surely, 2^850758261085 is an apocalyptic number.

It is an amenable number.

850758261085 is a deficient number, since it is larger than the sum of its proper divisors (170151652223).

850758261085 is a wasteful number, since it uses less digits than its factorization.

850758261085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170151652222.

The product of its (nonzero) digits is 5376000, while the sum is 55.

The spelling of 850758261085 in words is "eight hundred fifty billion, seven hundred fifty-eight million, two hundred sixty-one thousand, eighty-five".