5243494418 has 6 divisors (see below), whose sum is σ = 7865395239. Its totient is φ = 2621696006.

The previous prime is 5243494409. The next prime is 5243494441. The reversal of 5243494418 is 8144943425.

It can be written as a sum of positive squares in only one way, i.e., 2621747209 + 2621747209 = 51203^2 + 51203^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=51203.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76805 + ... + 128007.

Almost surely, 2^5243494418 is an apocalyptic number.

5243494418 is a deficient number, since it is larger than the sum of its proper divisors (2621900821).

5243494418 is an frugal number, since it uses more digits than its factorization.

5243494418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102408 (or 51205 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 5243494418 is about 72411.9770341896. The cubic root of 5243494418 is about 1737.2951343985.

The spelling of 5243494418 in words is "five billion, two hundred forty-three million, four hundred ninety-four thousand, four hundred eighteen".