850850851 has 4 divisors (see below), whose sum is σ = 857550592. Its totient is φ = 844151112.

The previous prime is 850850821. The next prime is 850850857. The reversal of 850850851 is 158058058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158058058 = 2 ⋅79029029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850850851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850850857) 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, 3349680 + ... + 3349933.

It is an arithmetic number, because the mean of its divisors is an integer number (214387648).

Almost surely, 2^850850851 is an apocalyptic number.

850850851 is a deficient number, since it is larger than the sum of its proper divisors (6699741).

850850851 is a wasteful number, since it uses less digits than its factorization.

850850851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6699740.

The product of its (nonzero) digits is 64000, while the sum is 40.

The square root of 850850851 is about 29169.3477986739. The cubic root of 850850851 is about 947.5842039883.

The spelling of 850850851 in words is "eight hundred fifty million, eight hundred fifty thousand, eight hundred fifty-one".