8044171381 has 2 divisors, whose sum is σ = 8044171382. Its totient is φ = 8044171380.

The previous prime is 8044171337. The next prime is 8044171391. The reversal of 8044171381 is 1831714408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6013227025 + 2030944356 = 77545^2 + 45066^2 .

It is a cyclic number.

It is not a de Polignac number, because 8044171381 - 2³¹ = 5896687733 is a prime.

It is a super-2 number, since 2×8044171381² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8044171381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8044171391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4022085690 + 4022085691.

It is an arithmetic number, because the mean of its divisors is an integer number (4022085691).

Almost surely, 2^8044171381 is an apocalyptic number.

It is an amenable number.

8044171381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8044171381 is an equidigital number, since it uses as much as digits as its factorization.

8044171381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 8044171381 is about 89689.3047191247. The cubic root of 8044171381 is about 2003.6741944309.

Adding to 8044171381 its reverse (1831714408), we get a palindrome (9875885789).

The spelling of 8044171381 in words is "eight billion, forty-four million, one hundred seventy-one thousand, three hundred eighty-one".