4434143391481 has 2 divisors, whose sum is σ = 4434143391482. Its totient is φ = 4434143391480.

The previous prime is 4434143391479. The next prime is 4434143391547. The reversal of 4434143391481 is 1841933414344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4067804934400 + 366338457081 = 2016880^2 + 605259^2 .

It is a cyclic number.

It is not a de Polignac number, because 4434143391481 - 2¹ = 4434143391479 is a prime.

It is a super-2 number, since 2×4434143391481² (a number of 26 digits) contains 22 as substring.

Together with 4434143391479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4434143391781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2217071695740 + 2217071695741.

It is an arithmetic number, because the mean of its divisors is an integer number (2217071695741).

Almost surely, 2^{4434143391481} is an apocalyptic number.

It is an amenable number.

4434143391481 is a deficient number, since it is larger than the sum of its proper divisors (1).

4434143391481 is an equidigital number, since it uses as much as digits as its factorization.

4434143391481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 49.

The spelling of 4434143391481 in words is "four trillion, four hundred thirty-four billion, one hundred forty-three million, three hundred ninety-one thousand, four hundred eighty-one".