850860000 has 360 divisors, whose sum is σ = 3147023880. Its totient is φ = 217728000.

The previous prime is 850859981. The next prime is 850860011. The reversal of 850860000 is 68058.

850860000 is a `hidden beast` number, since 8 + 50 + 8 + 600 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5219919 + ... + 5220081.

It is an arithmetic number, because the mean of its divisors is an integer number (8741733).

Almost surely, 2^850860000 is an apocalyptic number.

850860000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850860000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573511940).

850860000 is an abundant number, since it is smaller than the sum of its proper divisors (2296163880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

850860000 is a wasteful number, since it uses less digits than its factorization.

850860000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 850860000 is about 29169.5046238362. The cubic root of 850860000 is about 947.5876003598.

The spelling of 850860000 in words is "eight hundred fifty million, eight hundred sixty thousand".