7768080889 has 2 divisors, whose sum is σ = 7768080890. Its totient is φ = 7768080888.

The previous prime is 7768080871. The next prime is 7768080893. The reversal of 7768080889 is 9880808677.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7710244864 + 57836025 = 87808^2 + 7605^2 .

It is an emirp because it is prime and its reverse (9880808677) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7768080889 - 2¹⁷ = 7767949817 is a prime.

It is not a weakly prime, because it can be changed into another prime (7768080689) 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, 3884040444 + 3884040445.

It is an arithmetic number, because the mean of its divisors is an integer number (3884040445).

Almost surely, 2^7768080889 is an apocalyptic number.

It is an amenable number.

7768080889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7768080889 is an equidigital number, since it uses as much as digits as its factorization.

7768080889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10838016, while the sum is 61.

The square root of 7768080889 is about 88136.7170309854. The cubic root of 7768080889 is about 1980.4835815913.

The spelling of 7768080889 in words is "seven billion, seven hundred sixty-eight million, eighty thousand, eight hundred eighty-nine".