8043412081 has 2 divisors, whose sum is σ = 8043412082. Its totient is φ = 8043412080.

The previous prime is 8043412061. The next prime is 8043412093. The reversal of 8043412081 is 1802143408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7918330225 + 125081856 = 88985^2 + 11184^2 .

It is a cyclic number.

It is not a de Polignac number, because 8043412081 - 2⁷ = 8043411953 is a prime.

It is a super-2 number, since 2×8043412081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8043412001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4021706040 + 4021706041.

It is an arithmetic number, because the mean of its divisors is an integer number (4021706041).

Almost surely, 2^8043412081 is an apocalyptic number.

It is an amenable number.

8043412081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8043412081 is an equidigital number, since it uses as much as digits as its factorization.

8043412081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 8043412081 is about 89685.0716730494. The cubic root of 8043412081 is about 2003.6111492928.

Adding to 8043412081 its reverse (1802143408), we get a palindrome (9845555489).

The spelling of 8043412081 in words is "eight billion, forty-three million, four hundred twelve thousand, eighty-one".