5643243936 has 288 divisors, whose sum is σ = 18723519360. Its totient is φ = 1594982400.

The previous prime is 5643243929. The next prime is 5643243943. The reversal of 5643243936 is 6393423465.

5643243936 is a `hidden beast` number, since 564 + 3 + 24 + 39 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (5643243929) and next prime (5643243943).

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 5643243891 and 5643243900.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2986480 + ... + 2988368.

It is an arithmetic number, because the mean of its divisors is an integer number (65012220).

Almost surely, 2^5643243936 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 5643243936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9361759680).

5643243936 is an abundant number, since it is smaller than the sum of its proper divisors (13080275424).

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

5643243936 is a wasteful number, since it uses less digits than its factorization.

5643243936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1969 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 45.

The square root of 5643243936 is about 75121.5277799913. The cubic root of 5643243936 is about 1780.3672953282.

The spelling of 5643243936 in words is "five billion, six hundred forty-three million, two hundred forty-three thousand, nine hundred thirty-six".