4639664432 has 40 divisors (see below), whose sum is σ = 9942499056. Its totient is φ = 2083504896.

The previous prime is 4639664411. The next prime is 4639664551. The reversal of 4639664432 is 2344669364.

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, 293738 + ... + 309129.

Almost surely, 2^4639664432 is an apocalyptic number.

It is an amenable number.

4639664432 is an abundant number, since it is smaller than the sum of its proper divisors (5302834624).

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

4639664432 is a wasteful number, since it uses less digits than its factorization.

4639664432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602925 (or 602919 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 47.

The square root of 4639664432 is about 68115.0822652370. The cubic root of 4639664432 is about 1667.8699739729.

The spelling of 4639664432 in words is "four billion, six hundred thirty-nine million, six hundred sixty-four thousand, four hundred thirty-two".