448671727640813 has 2 divisors, whose sum is σ = 448671727640814. Its totient is φ = 448671727640812.

The previous prime is 448671727640789. The next prime is 448671727640863. The reversal of 448671727640813 is 318046727176844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448609894850569 + 61832790244 = 21180413^2 + 248662^2 .

It is a cyclic number.

It is not a de Polignac number, because 448671727640813 - 2¹⁰ = 448671727639789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448671727640863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224335863820406 + 224335863820407.

It is an arithmetic number, because the mean of its divisors is an integer number (224335863820407).

Almost surely, 2^{448671727640813} is an apocalyptic number.

It is an amenable number.

448671727640813 is a deficient number, since it is larger than the sum of its proper divisors (1).

448671727640813 is an equidigital number, since it uses as much as digits as its factorization.

448671727640813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 303464448, while the sum is 68.

The spelling of 448671727640813 in words is "four hundred forty-eight trillion, six hundred seventy-one billion, seven hundred twenty-seven million, six hundred forty thousand, eight hundred thirteen".