5291317538 has 16 divisors (see below), whose sum is σ = 8604125376. Its totient is φ = 2425971600.

The previous prime is 5291317531. The next prime is 5291317561. The reversal of 5291317538 is 8357131925.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5291317531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669956 + ... + 677807.

It is an arithmetic number, because the mean of its divisors is an integer number (537757836).

Almost surely, 2^5291317538 is an apocalyptic number.

5291317538 is a deficient number, since it is larger than the sum of its proper divisors (3312807838).

5291317538 is a wasteful number, since it uses less digits than its factorization.

5291317538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347929.

The product of its digits is 226800, while the sum is 44.

The square root of 5291317538 is about 72741.4430568985. The cubic root of 5291317538 is about 1742.5608061244.

The spelling of 5291317538 in words is "five billion, two hundred ninety-one million, three hundred seventeen thousand, five hundred thirty-eight".