189241134077 has 2 divisors, whose sum is σ = 189241134078. Its totient is φ = 189241134076.

The previous prime is 189241134011. The next prime is 189241134133. The reversal of 189241134077 is 770431142981.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175344025081 + 13897108996 = 418741^2 + 117886^2 .

It is a cyclic number.

It is not a de Polignac number, because 189241134077 - 2⁸ = 189241133821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189241134007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94620567038 + 94620567039.

It is an arithmetic number, because the mean of its divisors is an integer number (94620567039).

Almost surely, 2^189241134077 is an apocalyptic number.

It is an amenable number.

189241134077 is a deficient number, since it is larger than the sum of its proper divisors (1).

189241134077 is an equidigital number, since it uses as much as digits as its factorization.

189241134077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 189241134077 in words is "one hundred eighty-nine billion, two hundred forty-one million, one hundred thirty-four thousand, seventy-seven".