424841878309 has 2 divisors, whose sum is σ = 424841878310. Its totient is φ = 424841878308.

The previous prime is 424841878297. The next prime is 424841878327. The reversal of 424841878309 is 903878148424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215606992225 + 209234886084 = 464335^2 + 457422^2 .

It is a cyclic number.

It is not a de Polignac number, because 424841878309 - 2⁹ = 424841877797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424841818309) 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, 212420939154 + 212420939155.

It is an arithmetic number, because the mean of its divisors is an integer number (212420939155).

Almost surely, 2^424841878309 is an apocalyptic number.

It is an amenable number.

424841878309 is a deficient number, since it is larger than the sum of its proper divisors (1).

424841878309 is an equidigital number, since it uses as much as digits as its factorization.

424841878309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 424841878309 in words is "four hundred twenty-four billion, eight hundred forty-one million, eight hundred seventy-eight thousand, three hundred nine".