9715271326489 has 9 divisors (see below), whose sum is σ = 10320431019357. Its totient is φ = 9143734906944.

The previous prime is 9715271326433. The next prime is 9715271326507. The reversal of 9715271326489 is 9846231725179.

The square root of 9715271326489 is 3116933.

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

It can be written as a sum of positive squares in 4 ways, for example, as 663043775625 + 9052227550864 = 814275^2 + 3008692^2 .

It is not a de Polignac number, because 9715271326489 - 2⁷ = 9715271326361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9715271326489.

It is not an unprimeable number, because it can be changed into a prime (9715271326429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 52896187 + ... + 53079535.

Almost surely, 2^{9715271326489} is an apocalyptic number.

9715271326489 is the 3116933-rd square number.

9715271326489 is the 1558467-th centered octagonal number.

It is an amenable number.

9715271326489 is a deficient number, since it is larger than the sum of its proper divisors (605159692868).

9715271326489 is an frugal number, since it uses more digits than its factorization.

9715271326489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366732 (or 183366 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

Multiplying 9715271326489 by its sum of digits (64), we get a square (621777364895296 = 24935464²).

The spelling of 9715271326489 in words is "nine trillion, seven hundred fifteen billion, two hundred seventy-one million, three hundred twenty-six thousand, four hundred eighty-nine".