2081879976 has 128 divisors (see below), whose sum is σ = 6035420160. Its totient is φ = 591436800.

The previous prime is 2081879971. The next prime is 2081880007. The reversal of 2081879976 is 6799781802.

It is not an unprimeable number, because it can be changed into a prime (2081879971) 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, 1377061 + ... + 1378571.

It is an arithmetic number, because the mean of its divisors is an integer number (47151720).

Almost surely, 2^2081879976 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 2081879976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3017710080).

2081879976 is an abundant number, since it is smaller than the sum of its proper divisors (3953540184).

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

2081879976 is a wasteful number, since it uses less digits than its factorization.

2081879976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 2081879976 is about 45627.6229492618. The cubic root of 2081879976 is about 1276.8853258519.

The spelling of 2081879976 in words is "two billion, eighty-one million, eight hundred seventy-nine thousand, nine hundred seventy-six".