5643893720 has 16 divisors (see below), whose sum is σ = 12698760960. Its totient is φ = 2257557472.

The previous prime is 5643893681. The next prime is 5643893737. The reversal of 5643893720 is 273983465.

It is a happy number.

It is a super-3 number, since 3×5643893720³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70548632 + ... + 70548711.

It is an arithmetic number, because the mean of its divisors is an integer number (793672560).

Almost surely, 2^5643893720 is an apocalyptic number.

It is an amenable number.

5643893720 is an abundant number, since it is smaller than the sum of its proper divisors (7054867240).

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

5643893720 is a wasteful number, since it uses less digits than its factorization.

5643893720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141097354 (or 141097350 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 5643893720 is about 75125.8525409196. The cubic root of 5643893720 is about 1780.4356253996.

The spelling of 5643893720 in words is "five billion, six hundred forty-three million, eight hundred ninety-three thousand, seven hundred twenty".