442705518089 has 2 divisors, whose sum is σ = 442705518090. Its totient is φ = 442705518088.

The previous prime is 442705518007. The next prime is 442705518097. The reversal of 442705518089 is 980815507244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393028686400 + 49676831689 = 626920^2 + 222883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442705518089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442705518089.

It is not a weakly prime, because it can be changed into another prime (442705518389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221352759044 + 221352759045.

It is an arithmetic number, because the mean of its divisors is an integer number (221352759045).

Almost surely, 2^442705518089 is an apocalyptic number.

It is an amenable number.

442705518089 is a deficient number, since it is larger than the sum of its proper divisors (1).

442705518089 is an equidigital number, since it uses as much as digits as its factorization.

442705518089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 442705518089 in words is "four hundred forty-two billion, seven hundred five million, five hundred eighteen thousand, eighty-nine".