5643893768 has 12 divisors (see below), whose sum is σ = 10582699245. Its totient is φ = 2821840640.

The previous prime is 5643893737. The next prime is 5643893777. The reversal of 5643893768 is 8673983465.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 4777297924 + 866595844 = 69118^2 + 29438^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=53122.

It is a super-3 number, since 3×5643893768³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 199208 + ... + 225768.

Almost surely, 2^5643893768 is an apocalyptic number.

It is an amenable number.

5643893768 is a deficient number, since it is larger than the sum of its proper divisors (4938805477).

5643893768 is an frugal number, since it uses more digits than its factorization.

5643893768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53128 (or 26563 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 59.

The square root of 5643893768 is about 75125.8528603836. The cubic root of 5643893768 is about 1780.4356304470.

The spelling of 5643893768 in words is "five billion, six hundred forty-three million, eight hundred ninety-three thousand, seven hundred sixty-eight".