442224409987 has 2 divisors, whose sum is σ = 442224409988. Its totient is φ = 442224409986.

The previous prime is 442224409973. The next prime is 442224410041. The reversal of 442224409987 is 789904422244.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442224409987 is a prime.

It is not a weakly prime, because it can be changed into another prime (442224409927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221112204993 + 221112204994.

It is an arithmetic number, because the mean of its divisors is an integer number (221112204994).

Almost surely, 2^442224409987 is an apocalyptic number.

442224409987 is a deficient number, since it is larger than the sum of its proper divisors (1).

442224409987 is an equidigital number, since it uses as much as digits as its factorization.

442224409987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 442224409987 in words is "four hundred forty-two billion, two hundred twenty-four million, four hundred nine thousand, nine hundred eighty-seven".