189860262041 has 2 divisors, whose sum is σ = 189860262042. Its totient is φ = 189860262040.

The previous prime is 189860262001. The next prime is 189860262043. The reversal of 189860262041 is 140262068981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177203112025 + 12657150016 = 420955^2 + 112504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189860262041 is a prime.

Together with 189860262043, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189860262043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94930131020 + 94930131021.

It is an arithmetic number, because the mean of its divisors is an integer number (94930131021).

Almost surely, 2^189860262041 is an apocalyptic number.

It is an amenable number.

189860262041 is a deficient number, since it is larger than the sum of its proper divisors (1).

189860262041 is an equidigital number, since it uses as much as digits as its factorization.

189860262041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 189860262041 in words is "one hundred eighty-nine billion, eight hundred sixty million, two hundred sixty-two thousand, forty-one".