4643644892 has 48 divisors (see below), whose sum is σ = 8765359680. Its totient is φ = 2146839552.

The previous prime is 4643644813. The next prime is 4643644909. The reversal of 4643644892 is 2984463464.

It is a self number, because there is not a number n which added to its sum of digits gives 4643644892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530084 + ... + 538772.

It is an arithmetic number, because the mean of its divisors is an integer number (182611660).

Almost surely, 2^4643644892 is an apocalyptic number.

It is an amenable number.

4643644892 is a deficient number, since it is larger than the sum of its proper divisors (4121714788).

4643644892 is a wasteful number, since it uses less digits than its factorization.

4643644892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910 (or 8908 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 50.

The square root of 4643644892 is about 68144.2946401238. The cubic root of 4643644892 is about 1668.3468038654.

The spelling of 4643644892 in words is "four billion, six hundred forty-three million, six hundred forty-four thousand, eight hundred ninety-two".