189245948611117 has 2 divisors, whose sum is σ = 189245948611118. Its totient is φ = 189245948611116.

The previous prime is 189245948611087. The next prime is 189245948611121. The reversal of 189245948611117 is 711116849542981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141315651915876 + 47930296695241 = 11887626^2 + 6923171^2 .

It is a cyclic number.

It is not a de Polignac number, because 189245948611117 - 2³⁵ = 189211588872749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189242948611117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94622974305558 + 94622974305559.

It is an arithmetic number, because the mean of its divisors is an integer number (94622974305559).

Almost surely, 2^{189245948611117} is an apocalyptic number.

It is an amenable number.

189245948611117 is a deficient number, since it is larger than the sum of its proper divisors (1).

189245948611117 is an equidigital number, since it uses as much as digits as its factorization.

189245948611117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 67.

The spelling of 189245948611117 in words is "one hundred eighty-nine trillion, two hundred forty-five billion, nine hundred forty-eight million, six hundred eleven thousand, one hundred seventeen".