4643887768 has 32 divisors (see below), whose sum is σ = 9440046000. Its totient is φ = 2128940928.

The previous prime is 4643887747. The next prime is 4643887777. The reversal of 4643887768 is 8677883464.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 134346 + ... + 165337.

Almost surely, 2^4643887768 is an apocalyptic number.

It is an amenable number.

4643887768 is an abundant number, since it is smaller than the sum of its proper divisors (4796158232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4643887768 is a wasteful number, since it uses less digits than its factorization.

4643887768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299851 (or 299847 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 61.

The square root of 4643887768 is about 68146.0766882438. The cubic root of 4643887768 is about 1668.3758898057.

The spelling of 4643887768 in words is "four billion, six hundred forty-three million, eight hundred eighty-seven thousand, seven hundred sixty-eight".