327116507481 has 81 divisors (see below), whose sum is σ = 514586096661. Its totient is φ = 207916567848.

The previous prime is 327116507479. The next prime is 327116507507. The reversal of 327116507481 is 184705611723.

The square root of 327116507481 is 571941.

It is a perfect power (a square), and thus also a powerful number.

327116507481 is a `hidden beast` number, since 3 + 2 + 7 + 1 + 165 + 0 + 7 + 481 = 666.

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 327116507481 - 2¹ = 327116507479 is a prime.

It is a super-2 number, since 2×327116507481² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (327116507281) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1065525930 + ... + 1065526236.

Almost surely, 2^327116507481 is an apocalyptic number.

327116507481 is the 571941-st square number.

327116507481 is the 285971-st centered octagonal number.

It is an amenable number.

327116507481 is a deficient number, since it is larger than the sum of its proper divisors (187469589180).

327116507481 is an frugal number, since it uses more digits than its factorization.

327116507481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 327116507481 in words is "three hundred twenty-seven billion, one hundred sixteen million, five hundred seven thousand, four hundred eighty-one".