210202441441457 has 2 divisors, whose sum is σ = 210202441441458. Its totient is φ = 210202441441456.

The previous prime is 210202441441439. The next prime is 210202441441463. The reversal of 210202441441457 is 754144144202012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208557471027361 + 1644970414096 = 14441519^2 + 1282564^2 .

It is a cyclic number.

It is not a de Polignac number, because 210202441441457 - 2²⁰ = 210202440392881 is a prime.

It is not a weakly prime, because it can be changed into another prime (210202441441427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101220720728 + 105101220720729.

It is an arithmetic number, because the mean of its divisors is an integer number (105101220720729).

Almost surely, 2^{210202441441457} is an apocalyptic number.

It is an amenable number.

210202441441457 is a deficient number, since it is larger than the sum of its proper divisors (1).

210202441441457 is an equidigital number, since it uses as much as digits as its factorization.

210202441441457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 286720, while the sum is 41.

Adding to 210202441441457 its reverse (754144144202012), we get a palindrome (964346585643469).

The spelling of 210202441441457 in words is "two hundred ten trillion, two hundred two billion, four hundred forty-one million, four hundred forty-one thousand, four hundred fifty-seven".