71312170304 has 84 divisors (see below), whose sum is σ = 144196637184. Its totient is φ = 34989518592.

The previous prime is 71312170297. The next prime is 71312170351. The reversal of 71312170304 is 40307121317.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86229539 + ... + 86230365.

Almost surely, 2^71312170304 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 71312170304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72098318592).

71312170304 is an abundant number, since it is smaller than the sum of its proper divisors (72884466880).

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

71312170304 is a wasteful number, since it uses less digits than its factorization.

71312170304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The spelling of 71312170304 in words is "seventy-one billion, three hundred twelve million, one hundred seventy thousand, three hundred four".