2081788368 has 40 divisors (see below), whose sum is σ = 5866859616. Its totient is φ = 630844800.

The previous prime is 2081788361. The next prime is 2081788381. The reversal of 2081788368 is 8638871802.

It is a self number, because there is not a number n which added to its sum of digits gives 2081788368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081788361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1970863 + ... + 1971918.

Almost surely, 2^2081788368 is an apocalyptic number.

It is an amenable number.

2081788368 is an abundant number, since it is smaller than the sum of its proper divisors (3785071248).

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

2081788368 is a wasteful number, since it uses less digits than its factorization.

2081788368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942803 (or 3942797 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 2081788368 is about 45626.6190726422. The cubic root of 2081788368 is about 1276.8665968460.

The spelling of 2081788368 in words is "two billion, eighty-one million, seven hundred eighty-eight thousand, three hundred sixty-eight".