442002443999971 has 2 divisors, whose sum is σ = 442002443999972. Its totient is φ = 442002443999970.

The previous prime is 442002443999959. The next prime is 442002444000017. The reversal of 442002443999971 is 179999344200244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442002443999971 - 2³¹ = 442000296516323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442002443999897 and 442002443999906.

It is not a weakly prime, because it can be changed into another prime (442002443999911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221001221999985 + 221001221999986.

It is an arithmetic number, because the mean of its divisors is an integer number (221001221999986).

Almost surely, 2^{442002443999971} is an apocalyptic number.

442002443999971 is a deficient number, since it is larger than the sum of its proper divisors (1).

442002443999971 is an equidigital number, since it uses as much as digits as its factorization.

442002443999971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141087744, while the sum is 67.

The spelling of 442002443999971 in words is "four hundred forty-two trillion, two billion, four hundred forty-three million, nine hundred ninety-nine thousand, nine hundred seventy-one".