1128768673 has 2 divisors, whose sum is σ = 1128768674. Its totient is φ = 1128768672.

The previous prime is 1128768661. The next prime is 1128768749. The reversal of 1128768673 is 3768678211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066153104 + 62615569 = 32652^2 + 7913^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128768673 - 2⁹ = 1128768161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1128768973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564384336 + 564384337.

It is an arithmetic number, because the mean of its divisors is an integer number (564384337).

Almost surely, 2^1128768673 is an apocalyptic number.

It is an amenable number.

1128768673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128768673 is an equidigital number, since it uses as much as digits as its factorization.

1128768673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 1128768673 is about 33597.1527513865. The cubic root of 1128768673 is about 1041.2019735187.

The spelling of 1128768673 in words is "one billion, one hundred twenty-eight million, seven hundred sixty-eight thousand, six hundred seventy-three".