8199857094 has 128 divisors (see below), whose sum is σ = 20453368320. Its totient is φ = 2172424320.

The previous prime is 8199857087. The next prime is 8199857131. The reversal of 8199857094 is 4907589918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1970464 + ... + 1974620.

It is an arithmetic number, because the mean of its divisors is an integer number (159791940).

Almost surely, 2^8199857094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8199857094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10226684160).

8199857094 is an abundant number, since it is smaller than the sum of its proper divisors (12253511226).

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

8199857094 is a wasteful number, since it uses less digits than its factorization.

8199857094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227 (or 4205 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 60.

The square root of 8199857094 is about 90553.0623115530. The cubic root of 8199857094 is about 2016.5179607521.

The spelling of 8199857094 in words is "eight billion, one hundred ninety-nine million, eight hundred fifty-seven thousand, ninety-four".