2881995336 has 128 divisors (see below), whose sum is σ = 8758886400. Its totient is φ = 870776640.

The previous prime is 2881995323. The next prime is 2881995343. The reversal of 2881995336 is 6335991882.

2881995336 is a `hidden beast` number, since 28 + 81 + 9 + 9 + 533 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 908425 + ... + 911591.

It is an arithmetic number, because the mean of its divisors is an integer number (68428800).

Almost surely, 2^2881995336 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 2881995336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4379443200).

2881995336 is an abundant number, since it is smaller than the sum of its proper divisors (5876891064).

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

2881995336 is a wasteful number, since it uses less digits than its factorization.

2881995336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576 (or 3566 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 2881995336 is about 53684.2186866867. The cubic root of 2881995336 is about 1423.0858198910.

The spelling of 2881995336 in words is "two billion, eight hundred eighty-one million, nine hundred ninety-five thousand, three hundred thirty-six".