318646134456 has 128 divisors (see below), whose sum is σ = 881548557120. Its totient is φ = 95344349184.

The previous prime is 318646134427. The next prime is 318646134481. The reversal of 318646134456 is 654431646813.

It is a junction number, because it is equal to n+sod(n) for n = 318646134399 and 318646134408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25540636 + ... + 25553108.

Almost surely, 2^318646134456 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 318646134456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440774278560).

318646134456 is an abundant number, since it is smaller than the sum of its proper divisors (562902422664).

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

318646134456 is a wasteful number, since it uses less digits than its factorization.

318646134456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14745 (or 14741 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 51.

The spelling of 318646134456 in words is "three hundred eighteen billion, six hundred forty-six million, one hundred thirty-four thousand, four hundred fifty-six".