850918341851 has 4 divisors (see below), whose sum is σ = 873916134912. Its totient is φ = 827920548792.

The previous prime is 850918341841. The next prime is 850918341863. The reversal of 850918341851 is 158143819058.

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 850918341851 - 2³⁰ = 849844600027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 850918341793 and 850918341802.

It is not an unprimeable number, because it can be changed into a prime (850918341811) 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, 11498896475 + ... + 11498896548.

It is an arithmetic number, because the mean of its divisors is an integer number (218479033728).

Almost surely, 2^850918341851 is an apocalyptic number.

850918341851 is a deficient number, since it is larger than the sum of its proper divisors (22997793061).

850918341851 is a wasteful number, since it uses less digits than its factorization.

850918341851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22997793060.

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

The spelling of 850918341851 in words is "eight hundred fifty billion, nine hundred eighteen million, three hundred forty-one thousand, eight hundred fifty-one".