188000688361 has 2 divisors, whose sum is σ = 188000688362. Its totient is φ = 188000688360.

The previous prime is 188000688329. The next prime is 188000688433. The reversal of 188000688361 is 163886000881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154810771600 + 33189916761 = 393460^2 + 182181^2 .

It is a cyclic number.

It is not a de Polignac number, because 188000688361 - 2⁵ = 188000688329 is a prime.

It is not a weakly prime, because it can be changed into another prime (188000688661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94000344180 + 94000344181.

It is an arithmetic number, because the mean of its divisors is an integer number (94000344181).

Almost surely, 2^188000688361 is an apocalyptic number.

It is an amenable number.

188000688361 is a deficient number, since it is larger than the sum of its proper divisors (1).

188000688361 is an equidigital number, since it uses as much as digits as its factorization.

188000688361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 188000688361 in words is "one hundred eighty-eight billion, six hundred eighty-eight thousand, three hundred sixty-one".