5643670338 has 96 divisors (see below), whose sum is σ = 12991071600. Its totient is φ = 1767886848.

The previous prime is 5643670289. The next prime is 5643670423. The reversal of 5643670338 is 8330763465.

It can be written as a sum of positive squares in 8 ways, for example, as 2925403569 + 2718266769 = 54087^2 + 52137^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5643670293 and 5643670302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3789498 + ... + 3790986.

Almost surely, 2^5643670338 is an apocalyptic number.

5643670338 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5643670338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6495535800).

5643670338 is an abundant number, since it is smaller than the sum of its proper divisors (7347401262).

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

5643670338 is a wasteful number, since it uses less digits than its factorization.

5643670338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The square root of 5643670338 is about 75124.3658076393. The cubic root of 5643670338 is about 1780.4121355574.

The spelling of 5643670338 in words is "five billion, six hundred forty-three million, six hundred seventy thousand, three hundred thirty-eight".