5636644432 has 10 divisors (see below), whose sum is σ = 10920998618. Its totient is φ = 2818322208.

The previous prime is 5636644399. The next prime is 5636644439. The reversal of 5636644432 is 2344466365.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5603420736 + 33223696 = 74856^2 + 5764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5636644439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176145123 + ... + 176145154.

Almost surely, 2^5636644432 is an apocalyptic number.

It is an amenable number.

5636644432 is a deficient number, since it is larger than the sum of its proper divisors (5284354186).

5636644432 is a wasteful number, since it uses less digits than its factorization.

5636644432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352290285 (or 352290279 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 43.

The square root of 5636644432 is about 75077.5894125537. The cubic root of 5636644432 is about 1779.6730064656.

The spelling of 5636644432 in words is "five billion, six hundred thirty-six million, six hundred forty-four thousand, four hundred thirty-two".