318138613199 has 4 divisors (see below), whose sum is σ = 347060305320. Its totient is φ = 289216921080.

The previous prime is 318138613181. The next prime is 318138613201. The reversal of 318138613199 is 991316831813.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318138613199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 318138613199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318138613399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14460846044 + ... + 14460846065.

It is an arithmetic number, because the mean of its divisors is an integer number (86765076330).

Almost surely, 2^318138613199 is an apocalyptic number.

318138613199 is a deficient number, since it is larger than the sum of its proper divisors (28921692121).

318138613199 is a wasteful number, since it uses less digits than its factorization.

318138613199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28921692120.

The product of its digits is 839808, while the sum is 53.

The spelling of 318138613199 in words is "three hundred eighteen billion, one hundred thirty-eight million, six hundred thirteen thousand, one hundred ninety-nine".