318203233188864 has 88 divisors (see below), whose sum is σ = 848284936743120. Its totient is φ = 106048071204864.

The previous prime is 318203233188839. The next prime is 318203233188937. The reversal of 318203233188864 is 468881332302813.

It is a super-2 number, since 2×318203233188864² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318203233188798 and 318203233188807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6963942 + ... + 26170650.

Almost surely, 2^{318203233188864} 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 318203233188864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424142468371560).

318203233188864 is an abundant number, since it is smaller than the sum of its proper divisors (530081703554256).

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

318203233188864 is a wasteful number, since it uses less digits than its factorization.

318203233188864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19212125 (or 19212107 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 60.

The spelling of 318203233188864 in words is "three hundred eighteen trillion, two hundred three billion, two hundred thirty-three million, one hundred eighty-eight thousand, eight hundred sixty-four".