4428657668 has 12 divisors (see below), whose sum is σ = 7822582992. Its totient is φ = 2193633960.

The previous prime is 4428657647. The next prime is 4428657671. The reversal of 4428657668 is 8667568244.

It is a super-2 number, since 2×4428657668² = 39226017480670396448, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5173238 + ... + 5174093.

It is an arithmetic number, because the mean of its divisors is an integer number (651881916).

Almost surely, 2^4428657668 is an apocalyptic number.

It is an amenable number.

4428657668 is a deficient number, since it is larger than the sum of its proper divisors (3393925324).

4428657668 is a wasteful number, since it uses less digits than its factorization.

4428657668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10347442 (or 10347440 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 56.

The square root of 4428657668 is about 66548.1605155244. The cubic root of 4428657668 is about 1642.1923965122.

The spelling of 4428657668 in words is "four billion, four hundred twenty-eight million, six hundred fifty-seven thousand, six hundred sixty-eight".