5643000000 has 784 divisors, whose sum is σ = 23812195200. Its totient is φ = 1296000000.

The previous prime is 5642999993. The next prime is 5643000023. The reversal of 5643000000 is 3465.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 296999991 + ... + 297000009.

Almost surely, 2^5643000000 is an apocalyptic number.

5643000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11906097600).

5643000000 is an abundant number, since it is smaller than the sum of its proper divisors (18169195200).

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

5643000000 is an equidigital number, since it uses as much as digits as its factorization.

5643000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 5643000000 is about 75119.9041532935. The cubic root of 5643000000 is about 1780.3416421200.

Adding to 5643000000 its reverse (3465), we get a palindrome (5643003465).

The spelling of 5643000000 in words is "five billion, six hundred forty-three million", and thus it is an aban number.