5318138659 has 4 divisors (see below), whose sum is σ = 5447849400. Its totient is φ = 5188427920.

The previous prime is 5318138633. The next prime is 5318138711. The reversal of 5318138659 is 9568318135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5318138659 - 2⁷ = 5318138531 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5318138459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64855309 + ... + 64855390.

It is an arithmetic number, because the mean of its divisors is an integer number (1361962350).

Almost surely, 2^5318138659 is an apocalyptic number.

5318138659 is a deficient number, since it is larger than the sum of its proper divisors (129710741).

5318138659 is a wasteful number, since it uses less digits than its factorization.

5318138659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129710740.

The product of its digits is 777600, while the sum is 49.

The square root of 5318138659 is about 72925.5693087137. The cubic root of 5318138659 is about 1745.5001299327.

The spelling of 5318138659 in words is "five billion, three hundred eighteen million, one hundred thirty-eight thousand, six hundred fifty-nine".