My code:

n = int(input())
q = 11
constq = 11
sum = 1
counter = 0

for i in range(1,10):
    if (n % i == 0):
        counter += 1

while True:
    if (n != 0) and (counter > 2):
        while q > 0:
            sum *= q % 10
            q //= 10
        if sum == n:
            print(constq)
            break
    else:
        print(-1)
        break
    constq += 1
    q = constq
    sum = 1