318431289284472 has 384 divisors, whose sum is σ = 1049504560473600. Its totient is φ = 78374277374976.

The previous prime is 318431289284447. The next prime is 318431289284503. The reversal of 318431289284472 is 274482982134813.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49810354 + ... + 55838462.

It is an arithmetic number, because the mean of its divisors is an integer number (2733084792900).

Almost surely, 2^{318431289284472} 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 318431289284472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524752280236800).

318431289284472 is an abundant number, since it is smaller than the sum of its proper divisors (731073271189128).

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

318431289284472 is a wasteful number, since it uses less digits than its factorization.

318431289284472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028243 (or 6028220 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 66.

The spelling of 318431289284472 in words is "three hundred eighteen trillion, four hundred thirty-one billion, two hundred eighty-nine million, two hundred eighty-four thousand, four hundred seventy-two".