188795118645 has 216 divisors, whose sum is σ = 400955129640. Its totient is φ = 81915079680.

The previous prime is 188795118643. The next prime is 188795118653. The reversal of 188795118645 is 546811597881.

188795118645 is a `hidden beast` number, since 1 + 8 + 8 + 79 + 511 + 8 + 6 + 45 = 666.

188795118645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 82940544036 + 105854574609 = 287994^2 + 325353^2 .

It is not a de Polignac number, because 188795118645 - 2¹ = 188795118643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188795118641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 113117871 + ... + 113119539.

Almost surely, 2^188795118645 is an apocalyptic number.

188795118645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188795118645 is an abundant number, since it is smaller than the sum of its proper divisors (212160010995).

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

188795118645 is a wasteful number, since it uses less digits than its factorization.

188795118645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813 (or 1774 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 63.

The spelling of 188795118645 in words is "one hundred eighty-eight billion, seven hundred ninety-five million, one hundred eighteen thousand, six hundred forty-five".