188330189513 has 2 divisors, whose sum is σ = 188330189514. Its totient is φ = 188330189512.

The previous prime is 188330189491. The next prime is 188330189527. The reversal of 188330189513 is 315981033881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185147762944 + 3182426569 = 430288^2 + 56413^2 .

It is an emirp because it is prime and its reverse (315981033881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188330189513 - 2⁶ = 188330189449 is a prime.

It is not a weakly prime, because it can be changed into another prime (188330180513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94165094756 + 94165094757.

It is an arithmetic number, because the mean of its divisors is an integer number (94165094757).

Almost surely, 2^188330189513 is an apocalyptic number.

It is an amenable number.

188330189513 is a deficient number, since it is larger than the sum of its proper divisors (1).

188330189513 is an equidigital number, since it uses as much as digits as its factorization.

188330189513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 188330189513 in words is "one hundred eighty-eight billion, three hundred thirty million, one hundred eighty-nine thousand, five hundred thirteen".