189008074117 has 2 divisors, whose sum is σ = 189008074118. Its totient is φ = 189008074116.

The previous prime is 189008074111. The next prime is 189008074183. The reversal of 189008074117 is 711470800981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165121135201 + 23886938916 = 406351^2 + 154554^2 .

It is a cyclic number.

It is not a de Polignac number, because 189008074117 - 2³⁵ = 154648335749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189008074111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94504037058 + 94504037059.

It is an arithmetic number, because the mean of its divisors is an integer number (94504037059).

Almost surely, 2^189008074117 is an apocalyptic number.

It is an amenable number.

189008074117 is a deficient number, since it is larger than the sum of its proper divisors (1).

189008074117 is an equidigital number, since it uses as much as digits as its factorization.

189008074117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 46.

The spelling of 189008074117 in words is "one hundred eighty-nine billion, eight million, seventy-four thousand, one hundred seventeen".