2113766568 has 96 divisors (see below), whose sum is σ = 6128460000. Its totient is φ = 656166528.

The previous prime is 2113766563. The next prime is 2113766593. The reversal of 2113766568 is 8656673112.

2113766568 is a `hidden beast` number, since 2 + 1 + 13 + 76 + 6 + 568 = 666.

It is not an unprimeable number, because it can be changed into a prime (2113766563) 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, 67618 + ... + 93806.

It is an arithmetic number, because the mean of its divisors is an integer number (63838125).

Almost surely, 2^2113766568 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 2113766568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064230000).

2113766568 is an abundant number, since it is smaller than the sum of its proper divisors (4014693432).

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

2113766568 is a wasteful number, since it uses less digits than its factorization.

2113766568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26279 (or 26272 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2113766568 is about 45975.7171559074. The cubic root of 2113766568 is about 1283.3713550025.

The spelling of 2113766568 in words is "two billion, one hundred thirteen million, seven hundred sixty-six thousand, five hundred sixty-eight".