We will assume the Earth is sphere with radius R.

R = 6,400 km

V = the volume of the sphere

S = the surface of the sphere

V = (4/3)R^3pi

V = (4/3)6400^3*3.14 (pi = 3.14)

V = 1,097,509,546,666.67 km^3 is the volume

S = 4R^2pi

S = 4*6400^2*3.14 (pi = 3.14)

S = 514,457,600 km^2 is the surface area