851885190341 has 4 divisors (see below), whose sum is σ = 852073540032. Its totient is φ = 851696840652.

The previous prime is 851885190313. The next prime is 851885190347. The reversal of 851885190341 is 143091588158.

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 a cyclic number.

It is not a de Polignac number, because 851885190341 - 2²² = 851880996037 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 (851885190347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94168061 + ... + 94177106.

It is an arithmetic number, because the mean of its divisors is an integer number (213018385008).

Almost surely, 2^851885190341 is an apocalyptic number.

It is an amenable number.

851885190341 is a deficient number, since it is larger than the sum of its proper divisors (188349691).

851885190341 is a wasteful number, since it uses less digits than its factorization.

851885190341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188349690.

The product of its (nonzero) digits is 1382400, while the sum is 53.

The spelling of 851885190341 in words is "eight hundred fifty-one billion, eight hundred eighty-five million, one hundred ninety thousand, three hundred forty-one".