442378505873233 has 2 divisors, whose sum is σ = 442378505873234. Its totient is φ = 442378505873232.

The previous prime is 442378505873231. The next prime is 442378505873387. The reversal of 442378505873233 is 332378505873244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251618017950784 + 190760487922449 = 15862472^2 + 13811607^2 .

It is a cyclic number.

It is not a de Polignac number, because 442378505873233 - 2¹ = 442378505873231 is a prime.

Together with 442378505873231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (442378505873231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221189252936616 + 221189252936617.

It is an arithmetic number, because the mean of its divisors is an integer number (221189252936617).

Almost surely, 2^{442378505873233} is an apocalyptic number.

It is an amenable number.

442378505873233 is a deficient number, since it is larger than the sum of its proper divisors (1).

442378505873233 is an equidigital number, since it uses as much as digits as its factorization.

442378505873233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 406425600, while the sum is 64.

The spelling of 442378505873233 in words is "four hundred forty-two trillion, three hundred seventy-eight billion, five hundred five million, eight hundred seventy-three thousand, two hundred thirty-three".