5643621632 has 72 divisors (see below), whose sum is σ = 12551075712. Its totient is φ = 2510643200.

The previous prime is 5643621601. The next prime is 5643621649. The reversal of 5643621632 is 2361263465.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111032 + ... + 153672.

It is an arithmetic number, because the mean of its divisors is an integer number (174320496).

Almost surely, 2^5643621632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643621632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6275537856).

5643621632 is an abundant number, since it is smaller than the sum of its proper divisors (6907454080).

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

5643621632 is a wasteful number, since it uses less digits than its factorization.

5643621632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42715 (or 42701 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 5643621632 is about 75124.0416378139. The cubic root of 5643621632 is about 1780.4070137722.

The spelling of 5643621632 in words is "five billion, six hundred forty-three million, six hundred twenty-one thousand, six hundred thirty-two".