188883263081 has 2 divisors, whose sum is σ = 188883263082. Its totient is φ = 188883263080.

The previous prime is 188883263069. The next prime is 188883263117. The reversal of 188883263081 is 180362388881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113555520400 + 75327742681 = 336980^2 + 274459^2 .

It is an emirp because it is prime and its reverse (180362388881) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188883263081 is a prime.

It is a super-2 number, since 2×188883263081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188883260081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94441631540 + 94441631541.

It is an arithmetic number, because the mean of its divisors is an integer number (94441631541).

Almost surely, 2^188883263081 is an apocalyptic number.

It is an amenable number.

188883263081 is a deficient number, since it is larger than the sum of its proper divisors (1).

188883263081 is an equidigital number, since it uses as much as digits as its factorization.

188883263081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3538944, while the sum is 56.

The spelling of 188883263081 in words is "one hundred eighty-eight billion, eight hundred eighty-three million, two hundred sixty-three thousand, eighty-one".