4519505668 has 12 divisors (see below), whose sum is σ = 7910434252. Its totient is φ = 2259381600.

The previous prime is 4519505657. The next prime is 4519505671. The reversal of 4519505668 is 8665059154.

It can be written as a sum of positive squares in 2 ways, for example, as 3303030784 + 1216474884 = 57472^2 + 34878^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 64455 + ... + 114862.

Almost surely, 2^4519505668 is an apocalyptic number.

It is an amenable number.

4519505668 is a deficient number, since it is larger than the sum of its proper divisors (3390928584).

4519505668 is a wasteful number, since it uses less digits than its factorization.

4519505668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185622 (or 185620 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 4519505668 is about 67227.2687828384. The cubic root of 4519505668 is about 1653.3456045128.

The spelling of 4519505668 in words is "four billion, five hundred nineteen million, five hundred five thousand, six hundred sixty-eight".