8128325818597 has 24 divisors (see below), whose sum is σ = 8467204415904. Its totient is φ = 7802552861376.

The previous prime is 8128325818577. The next prime is 8128325818607. The reversal of 8128325818597 is 7958185238218.

It is not a de Polignac number, because 8128325818597 - 2³¹ = 8126178334949 is a prime.

It is a super-2 number, since 2×8128325818597² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128325818507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105396783 + ... + 105473875.

It is an arithmetic number, because the mean of its divisors is an integer number (352800183996).

Almost surely, 2^{8128325818597} is an apocalyptic number.

It is an amenable number.

8128325818597 is a deficient number, since it is larger than the sum of its proper divisors (338878597307).

8128325818597 is a wasteful number, since it uses less digits than its factorization.

8128325818597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77877 (or 77848 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 67.

The spelling of 8128325818597 in words is "eight trillion, one hundred twenty-eight billion, three hundred twenty-five million, eight hundred eighteen thousand, five hundred ninety-seven".