2081881382 has 16 divisors (see below), whose sum is σ = 3570351360. Its totient is φ = 891881928.

The previous prime is 2081881369. The next prime is 2081881397. The reversal of 2081881382 is 2831881802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8969 + ... + 65147.

It is an arithmetic number, because the mean of its divisors is an integer number (223146960).

Almost surely, 2^2081881382 is an apocalyptic number.

2081881382 is a deficient number, since it is larger than the sum of its proper divisors (1488469978).

2081881382 is a wasteful number, since it uses less digits than its factorization.

2081881382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58835.

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 2081881382 is about 45627.6383565926. The cubic root of 2081881382 is about 1276.8856133004.

The spelling of 2081881382 in words is "two billion, eighty-one million, eight hundred eighty-one thousand, three hundred eighty-two".