2851871112 has 128 divisors (see below), whose sum is σ = 8304912000. Its totient is φ = 905748480.

The previous prime is 2851871111. The next prime is 2851871171. The reversal of 2851871112 is 2111781582.

2851871112 is a `hidden beast` number, since 28 + 518 + 7 + 1 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2851871111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377064 + ... + 384552.

It is an arithmetic number, because the mean of its divisors is an integer number (64882125).

Almost surely, 2^2851871112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2851871112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4152456000).

2851871112 is an abundant number, since it is smaller than the sum of its proper divisors (5453040888).

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

2851871112 is a wasteful number, since it uses less digits than its factorization.

2851871112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7588 (or 7578 counting only the distinct ones).

The product of its digits is 8960, while the sum is 36.

The square root of 2851871112 is about 53402.9129542575. The cubic root of 2851871112 is about 1418.1101474539.

The spelling of 2851871112 in words is "two billion, eight hundred fifty-one million, eight hundred seventy-one thousand, one hundred twelve".