189814652188127 has 2 divisors, whose sum is σ = 189814652188128. Its totient is φ = 189814652188126.

The previous prime is 189814652188099. The next prime is 189814652188159. The reversal of 189814652188127 is 721881256418981.

It is a weak prime.

It is an emirp because it is prime and its reverse (721881256418981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189814652188127 - 2³⁸ = 189539774281183 is a prime.

It is a super-2 number, since 2×189814652188127² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189814652188177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94907326094063 + 94907326094064.

It is an arithmetic number, because the mean of its divisors is an integer number (94907326094064).

Almost surely, 2^{189814652188127} is an apocalyptic number.

189814652188127 is a deficient number, since it is larger than the sum of its proper divisors (1).

189814652188127 is an equidigital number, since it uses as much as digits as its factorization.

189814652188127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123863040, while the sum is 71.

The spelling of 189814652188127 in words is "one hundred eighty-nine trillion, eight hundred fourteen billion, six hundred fifty-two million, one hundred eighty-eight thousand, one hundred twenty-seven".