419019494823521 has 2 divisors, whose sum is σ = 419019494823522. Its totient is φ = 419019494823520.

The previous prime is 419019494823497. The next prime is 419019494823563. The reversal of 419019494823521 is 125328494910914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234221598490000 + 184797896333521 = 15304300^2 + 13594039^2 .

It is a cyclic number.

It is not a de Polignac number, because 419019494823521 - 2¹⁰ = 419019494822497 is a prime.

It is a super-2 number, since 2×419019494823521² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (419019494826521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209509747411760 + 209509747411761.

It is an arithmetic number, because the mean of its divisors is an integer number (209509747411761).

Almost surely, 2^{419019494823521} is an apocalyptic number.

It is an amenable number.

419019494823521 is a deficient number, since it is larger than the sum of its proper divisors (1).

419019494823521 is an equidigital number, since it uses as much as digits as its factorization.

419019494823521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22394880, while the sum is 62.

The spelling of 419019494823521 in words is "four hundred nineteen trillion, nineteen billion, four hundred ninety-four million, eight hundred twenty-three thousand, five hundred twenty-one".