4749221668 has 24 divisors (see below), whose sum is σ = 8474336640. Its totient is φ = 2328050400.

The previous prime is 4749221647. The next prime is 4749221693. The reversal of 4749221668 is 8661229474.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299893 + ... + 315331.

It is an arithmetic number, because the mean of its divisors is an integer number (353097360).

Almost surely, 2^4749221668 is an apocalyptic number.

It is an amenable number.

4749221668 is a deficient number, since it is larger than the sum of its proper divisors (3725114972).

4749221668 is a wasteful number, since it uses less digits than its factorization.

4749221668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16947 (or 16945 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 4749221668 is about 68914.5969153125. The cubic root of 4749221668 is about 1680.8958831896.

The spelling of 4749221668 in words is "four billion, seven hundred forty-nine million, two hundred twenty-one thousand, six hundred sixty-eight".