188853021361 has 2 divisors, whose sum is σ = 188853021362. Its totient is φ = 188853021360.

The previous prime is 188853021349. The next prime is 188853021421. The reversal of 188853021361 is 163120358881.

188853021361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153299656225 + 35553365136 = 391535^2 + 188556^2 .

It is a cyclic number.

It is not a de Polignac number, because 188853021361 - 2¹⁹ = 188852497073 is a prime.

It is not a weakly prime, because it can be changed into another prime (188853021341) 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 as a sum of consecutive naturals, namely, 94426510680 + 94426510681.

It is an arithmetic number, because the mean of its divisors is an integer number (94426510681).

Almost surely, 2^188853021361 is an apocalyptic number.

It is an amenable number.

188853021361 is a deficient number, since it is larger than the sum of its proper divisors (1).

188853021361 is an equidigital number, since it uses as much as digits as its factorization.

188853021361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 188853021361 in words is "one hundred eighty-eight billion, eight hundred fifty-three million, twenty-one thousand, three hundred sixty-one".