489336399402121 has 2 divisors, whose sum is σ = 489336399402122. Its totient is φ = 489336399402120.

The previous prime is 489336399402077. The next prime is 489336399402131. The reversal of 489336399402121 is 121204993633984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291478416962121 + 197857982440000 = 17072739^2 + 14066200^2 .

It is a cyclic number.

It is not a de Polignac number, because 489336399402121 - 2⁹ = 489336399401609 is a prime.

It is a super-2 number, since 2×489336399402121² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (489336399402131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244668199701060 + 244668199701061.

It is an arithmetic number, because the mean of its divisors is an integer number (244668199701061).

Almost surely, 2^{489336399402121} is an apocalyptic number.

It is an amenable number.

489336399402121 is a deficient number, since it is larger than the sum of its proper divisors (1).

489336399402121 is an equidigital number, since it uses as much as digits as its factorization.

489336399402121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60466176, while the sum is 64.

The spelling of 489336399402121 in words is "four hundred eighty-nine trillion, three hundred thirty-six billion, three hundred ninety-nine million, four hundred two thousand, one hundred twenty-one".