442889062813 has 2 divisors, whose sum is σ = 442889062814. Its totient is φ = 442889062812.

The previous prime is 442889062757. The next prime is 442889062831. The reversal of 442889062813 is 318260988244.

Together with next prime (442889062831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345318419044 + 97570643769 = 587638^2 + 312363^2 .

It is a cyclic number.

It is not a de Polignac number, because 442889062813 - 2²⁹ = 442352191901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442889062873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221444531406 + 221444531407.

It is an arithmetic number, because the mean of its divisors is an integer number (221444531407).

Almost surely, 2^442889062813 is an apocalyptic number.

It is an amenable number.

442889062813 is a deficient number, since it is larger than the sum of its proper divisors (1).

442889062813 is an equidigital number, since it uses as much as digits as its factorization.

442889062813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 442889062813 in words is "four hundred forty-two billion, eight hundred eighty-nine million, sixty-two thousand, eight hundred thirteen".