188113049568 has 168 divisors, whose sum is σ = 587931362928. Its totient is φ = 59015734272.

The previous prime is 188113049563. The next prime is 188113049587. The reversal of 188113049568 is 865940311881.

It is a happy number.

188113049568 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 1 + 30 + 49 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188113049563) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 159405 + ... + 633747.

It is an arithmetic number, because the mean of its divisors is an integer number (3499591446).

Almost surely, 2^188113049568 is an apocalyptic number.

188113049568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188113049568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293965681464).

188113049568 is an abundant number, since it is smaller than the sum of its proper divisors (399818313360).

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

188113049568 is an equidigital number, since it uses as much as digits as its factorization.

188113049568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474388 (or 474365 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 188113049568 in words is "one hundred eighty-eight billion, one hundred thirteen million, forty-nine thousand, five hundred sixty-eight".