6364544242 has 24 divisors (see below), whose sum is σ = 11143433196. Its totient is φ = 2718340128.

The previous prime is 6364544239. The next prime is 6364544243. The reversal of 6364544242 is 2424454636.

It can be written as a sum of positive squares in 2 ways, for example, as 6360222001 + 4322241 = 79751^2 + 2079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6364544195 and 6364544204.

It is not an unprimeable number, because it can be changed into a prime (6364544243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82113 + ... + 139540.

Almost surely, 2^6364544242 is an apocalyptic number.

6364544242 is a deficient number, since it is larger than the sum of its proper divisors (4778888954).

6364544242 is a wasteful number, since it uses less digits than its factorization.

6364544242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221962 (or 221955 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

The square root of 6364544242 is about 79778.0937475946. The cubic root of 6364544242 is about 1853.2006189652.

Adding to 6364544242 its reverse (2424454636), we get a palindrome (8788998878).

The spelling of 6364544242 in words is "six billion, three hundred sixty-four million, five hundred forty-four thousand, two hundred forty-two".