318216739317 has 16 divisors (see below), whose sum is σ = 438067832832. Its totient is φ = 205257947760.

The previous prime is 318216739297. The next prime is 318216739369. The reversal of 318216739317 is 713937612813.

It is a happy number.

It is not a de Polignac number, because 318216739317 - 2¹⁶ = 318216673781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318216739317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318216739117) 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 15 ways as a sum of consecutive naturals, for example, 87798 + ... + 802584.

It is an arithmetic number, because the mean of its divisors is an integer number (27379239552).

Almost surely, 2^318216739317 is an apocalyptic number.

It is an amenable number.

318216739317 is a deficient number, since it is larger than the sum of its proper divisors (119851093515).

318216739317 is a wasteful number, since it uses less digits than its factorization.

318216739317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719608.

The product of its digits is 1143072, while the sum is 51.

The spelling of 318216739317 in words is "three hundred eighteen billion, two hundred sixteen million, seven hundred thirty-nine thousand, three hundred seventeen".