7680995809 has 2 divisors, whose sum is σ = 7680995810. Its totient is φ = 7680995808.

The previous prime is 7680995783. The next prime is 7680995837. The reversal of 7680995809 is 9085990867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7582926400 + 98069409 = 87080^2 + 9903^2 .

It is a cyclic number.

It is not a de Polignac number, because 7680995809 - 2⁷ = 7680995681 is a prime.

It is not a weakly prime, because it can be changed into another prime (7680995849) 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, 3840497904 + 3840497905.

It is an arithmetic number, because the mean of its divisors is an integer number (3840497905).

Almost surely, 2^7680995809 is an apocalyptic number.

It is an amenable number.

7680995809 is a deficient number, since it is larger than the sum of its proper divisors (1).

7680995809 is an equidigital number, since it uses as much as digits as its factorization.

7680995809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The square root of 7680995809 is about 87641.2905484624. The cubic root of 7680995809 is about 1973.0549292575.

The spelling of 7680995809 in words is "seven billion, six hundred eighty million, nine hundred ninety-five thousand, eight hundred nine".