189057127289 has 2 divisors, whose sum is σ = 189057127290. Its totient is φ = 189057127288.

The previous prime is 189057127229. The next prime is 189057127319. The reversal of 189057127289 is 982721750981.

189057127289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137251725625 + 51805401664 = 370475^2 + 227608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189057127289 is a prime.

It is not a weakly prime, because it can be changed into another prime (189057127229) 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, 94528563644 + 94528563645.

It is an arithmetic number, because the mean of its divisors is an integer number (94528563645).

Almost surely, 2^189057127289 is an apocalyptic number.

It is an amenable number.

189057127289 is a deficient number, since it is larger than the sum of its proper divisors (1).

189057127289 is an equidigital number, since it uses as much as digits as its factorization.

189057127289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 59.

The spelling of 189057127289 in words is "one hundred eighty-nine billion, fifty-seven million, one hundred twenty-seven thousand, two hundred eighty-nine".