5643244464 has 240 divisors, whose sum is σ = 17820859392. Its totient is φ = 1526976000.

The previous prime is 5643244463. The next prime is 5643244493. The reversal of 5643244464 is 4644423465.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643244463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2339419 + ... + 2341829.

Almost surely, 2^5643244464 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 5643244464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8910429696).

5643244464 is an abundant number, since it is smaller than the sum of its proper divisors (12177614928).

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

5643244464 is a wasteful number, since it uses less digits than its factorization.

5643244464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488 (or 2471 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 42.

The square root of 5643244464 is about 75121.5312942967. The cubic root of 5643244464 is about 1780.3673508538.

The spelling of 5643244464 in words is "five billion, six hundred forty-three million, two hundred forty-four thousand, four hundred sixty-four".