8076409489 has 2 divisors, whose sum is σ = 8076409490. Its totient is φ = 8076409488.

The previous prime is 8076409421. The next prime is 8076409513. The reversal of 8076409489 is 9849046708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6433323264 + 1643086225 = 80208^2 + 40535^2 .

It is a cyclic number.

It is not a de Polignac number, because 8076409489 - 2¹⁹ = 8075885201 is a prime.

It is a super-2 number, since 2×8076409489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8076409189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4038204744 + 4038204745.

It is an arithmetic number, because the mean of its divisors is an integer number (4038204745).

Almost surely, 2^8076409489 is an apocalyptic number.

It is an amenable number.

8076409489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8076409489 is an equidigital number, since it uses as much as digits as its factorization.

8076409489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 8076409489 is about 89868.8460424412. The cubic root of 8076409489 is about 2006.3472920485.

The spelling of 8076409489 in words is "eight billion, seventy-six million, four hundred nine thousand, four hundred eighty-nine".