4172441518081 has 2 divisors, whose sum is σ = 4172441518082. Its totient is φ = 4172441518080.

The previous prime is 4172441518079. The next prime is 4172441518109. The reversal of 4172441518081 is 1808151442714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3824293136400 + 348148381681 = 1955580^2 + 590041^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172441518081 - 2¹ = 4172441518079 is a prime.

It is a super-2 number, since 2×4172441518081² (a number of 26 digits) contains 22 as substring.

Together with 4172441518079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4172441818081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086220759040 + 2086220759041.

It is an arithmetic number, because the mean of its divisors is an integer number (2086220759041).

Almost surely, 2^{4172441518081} is an apocalyptic number.

It is an amenable number.

4172441518081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172441518081 is an equidigital number, since it uses as much as digits as its factorization.

4172441518081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 286720, while the sum is 46.

The spelling of 4172441518081 in words is "four trillion, one hundred seventy-two billion, four hundred forty-one million, five hundred eighteen thousand, eighty-one".