189146899127 has 2 divisors, whose sum is σ = 189146899128. Its totient is φ = 189146899126.

The previous prime is 189146899093. The next prime is 189146899159. The reversal of 189146899127 is 721998641981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189146899127 - 2³⁰ = 188073157303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189146839127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94573449563 + 94573449564.

It is an arithmetic number, because the mean of its divisors is an integer number (94573449564).

Almost surely, 2^189146899127 is an apocalyptic number.

189146899127 is a deficient number, since it is larger than the sum of its proper divisors (1).

189146899127 is an equidigital number, since it uses as much as digits as its factorization.

189146899127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 65.

The spelling of 189146899127 in words is "one hundred eighty-nine billion, one hundred forty-six million, eight hundred ninety-nine thousand, one hundred twenty-seven".