581413173312 has 112 divisors (see below), whose sum is σ = 1552013387712. Its totient is φ = 192084049920.

The previous prime is 581413173307. The next prime is 581413173331. The reversal of 581413173312 is 213371314185.

581413173312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×581413173312³ (a number of 36 digits) contains 333 as substring.

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, 16843623 + ... + 16878105.

Almost surely, 2^581413173312 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 581413173312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776006693856).

581413173312 is an abundant number, since it is smaller than the sum of its proper divisors (970600214400).

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

581413173312 is a wasteful number, since it uses less digits than its factorization.

581413173312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35276 (or 35266 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

Adding to 581413173312 its reverse (213371314185), we get a palindrome (794784487497).

The spelling of 581413173312 in words is "five hundred eighty-one billion, four hundred thirteen million, one hundred seventy-three thousand, three hundred twelve".