2011723776 has 240 divisors, whose sum is σ = 6132246120. Its totient is φ = 656916480.

The previous prime is 2011723733. The next prime is 2011723793. The reversal of 2011723776 is 6773271102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2011723776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11114406 + ... + 11114586.

Almost surely, 2^2011723776 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 2011723776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3066123060).

2011723776 is an abundant number, since it is smaller than the sum of its proper divisors (4120522344).

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

2011723776 is an equidigital number, since it uses as much as digits as its factorization.

2011723776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 2011723776 is about 44852.2438234700. The cubic root of 2011723776 is about 1262.3780938528.

Adding to 2011723776 its reverse (6773271102), we get a palindrome (8784994878).

The spelling of 2011723776 in words is "two billion, eleven million, seven hundred twenty-three thousand, seven hundred seventy-six".