850847773197 has 4 divisors (see below), whose sum is σ = 1134463697600. Its totient is φ = 567231848796.

The previous prime is 850847773133. The next prime is 850847773213. The reversal of 850847773197 is 791377748058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 850847773197 - 2⁶ = 850847773133 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 (850847773597) 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, 141807962197 + ... + 141807962202.

It is an arithmetic number, because the mean of its divisors is an integer number (283615924400).

Almost surely, 2^850847773197 is an apocalyptic number.

It is an amenable number.

850847773197 is a deficient number, since it is larger than the sum of its proper divisors (283615924403).

850847773197 is a wasteful number, since it uses less digits than its factorization.

850847773197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283615924402.

The product of its (nonzero) digits is 82978560, while the sum is 66.

The spelling of 850847773197 in words is "eight hundred fifty billion, eight hundred forty-seven million, seven hundred seventy-three thousand, one hundred ninety-seven".