2081411864 has 96 divisors (see below), whose sum is σ = 4937980320. Its totient is φ = 802864128.

The previous prime is 2081411851. The next prime is 2081411869. The reversal of 2081411864 is 4681141802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081411869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501542 + ... + 505674.

It is an arithmetic number, because the mean of its divisors is an integer number (51437295).

Almost surely, 2^2081411864 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 2081411864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2468990160).

2081411864 is an abundant number, since it is smaller than the sum of its proper divisors (2856568456).

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

2081411864 is a wasteful number, since it uses less digits than its factorization.

2081411864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209 (or 4182 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 2081411864 is about 45622.4929612576. The cubic root of 2081411864 is about 1276.7896158596.

The spelling of 2081411864 in words is "two billion, eighty-one million, four hundred eleven thousand, eight hundred sixty-four".