419344225721 has 2 divisors, whose sum is σ = 419344225722. Its totient is φ = 419344225720.

The previous prime is 419344225693. The next prime is 419344225733. The reversal of 419344225721 is 127522443914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402893598121 + 16450627600 = 634739^2 + 128260^2 .

It is a cyclic number.

It is not a de Polignac number, because 419344225721 - 2¹⁴ = 419344209337 is a prime.

It is not a weakly prime, because it can be changed into another prime (419344221721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209672112860 + 209672112861.

It is an arithmetic number, because the mean of its divisors is an integer number (209672112861).

Almost surely, 2^419344225721 is an apocalyptic number.

It is an amenable number.

419344225721 is a deficient number, since it is larger than the sum of its proper divisors (1).

419344225721 is an equidigital number, since it uses as much as digits as its factorization.

419344225721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 44.

The spelling of 419344225721 in words is "four hundred nineteen billion, three hundred forty-four million, two hundred twenty-five thousand, seven hundred twenty-one".