201425544521189 has 2 divisors, whose sum is σ = 201425544521190. Its totient is φ = 201425544521188.

The previous prime is 201425544521099. The next prime is 201425544521207. The reversal of 201425544521189 is 981125445524102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156459695308225 + 44965849212964 = 12508385^2 + 6705658^2 .

It is a cyclic number.

It is not a de Polignac number, because 201425544521189 - 2⁸ = 201425544520933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201425544521189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201425544527189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100712772260594 + 100712772260595.

It is an arithmetic number, because the mean of its divisors is an integer number (100712772260595).

Almost surely, 2^{201425544521189} is an apocalyptic number.

It is an amenable number.

201425544521189 is a deficient number, since it is larger than the sum of its proper divisors (1).

201425544521189 is an equidigital number, since it uses as much as digits as its factorization.

201425544521189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 201425544521189 in words is "two hundred one trillion, four hundred twenty-five billion, five hundred forty-four million, five hundred twenty-one thousand, one hundred eighty-nine".