318831683368 has 64 divisors (see below), whose sum is σ = 692497512000. Its totient is φ = 136007531520.

The previous prime is 318831683329. The next prime is 318831683407. The reversal of 318831683368 is 863386138813.

It is an interprime number because it is at equal distance from previous prime (318831683329) and next prime (318831683407).

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216771 + ... + 827437.

It is an arithmetic number, because the mean of its divisors is an integer number (10820273625).

Almost surely, 2^318831683368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318831683368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346248756000).

318831683368 is an abundant number, since it is smaller than the sum of its proper divisors (373665828632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318831683368 is a wasteful number, since it uses less digits than its factorization.

318831683368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611050 (or 611046 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 58.

Subtracting 318831683368 from its reverse (863386138813), we obtain a palindrome (544554455445).

The spelling of 318831683368 in words is "three hundred eighteen billion, eight hundred thirty-one million, six hundred eighty-three thousand, three hundred sixty-eight".