41521410431209 has 2 divisors, whose sum is σ = 41521410431210. Its totient is φ = 41521410431208.

The previous prime is 41521410431197. The next prime is 41521410431323. The reversal of 41521410431209 is 90213401412514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33357590013609 + 8163820417600 = 5775603^2 + 2857240^2 .

It is a cyclic number.

It is not a de Polignac number, because 41521410431209 - 2¹⁵ = 41521410398441 is a prime.

It is not a weakly prime, because it can be changed into another prime (41521410431909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20760705215604 + 20760705215605.

It is an arithmetic number, because the mean of its divisors is an integer number (20760705215605).

Almost surely, 2^{41521410431209} is an apocalyptic number.

It is an amenable number.

41521410431209 is a deficient number, since it is larger than the sum of its proper divisors (1).

41521410431209 is an equidigital number, since it uses as much as digits as its factorization.

41521410431209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 41521410431209 in words is "forty-one trillion, five hundred twenty-one billion, four hundred ten million, four hundred thirty-one thousand, two hundred nine".