442348713481 has 2 divisors, whose sum is σ = 442348713482. Its totient is φ = 442348713480.

The previous prime is 442348713479. The next prime is 442348713487. The reversal of 442348713481 is 184317843244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244871574025 + 197477139456 = 494845^2 + 444384^2 .

It is a cyclic number.

It is not a de Polignac number, because 442348713481 - 2¹ = 442348713479 is a prime.

It is a super-2 number, since 2×442348713481² (a number of 24 digits) contains 22 as substring.

Together with 442348713479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (442348713487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221174356740 + 221174356741.

It is an arithmetic number, because the mean of its divisors is an integer number (221174356741).

Almost surely, 2^442348713481 is an apocalyptic number.

It is an amenable number.

442348713481 is a deficient number, since it is larger than the sum of its proper divisors (1).

442348713481 is an equidigital number, since it uses as much as digits as its factorization.

442348713481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 49.

The spelling of 442348713481 in words is "four hundred forty-two billion, three hundred forty-eight million, seven hundred thirteen thousand, four hundred eighty-one".