8128356148512 has 72 divisors (see below), whose sum is σ = 23115320258940. Its totient is φ = 2709416010240.

The previous prime is 8128356148511. The next prime is 8128356148529. The reversal of 8128356148512 is 2158416538218.

8128356148512 is a `hidden beast` number, since 8 + 1 + 2 + 8 + 3 + 5 + 614 + 8 + 5 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8126809771536 + 1546376976 = 2850756^2 + 39324^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (8128356148511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29810814 + ... + 30082242.

Almost surely, 2^{8128356148512} is an apocalyptic number.

It is an amenable number.

8128356148512 is an abundant number, since it is smaller than the sum of its proper divisors (14986964110428).

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

8128356148512 is a wasteful number, since it uses less digits than its factorization.

8128356148512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375426 (or 375415 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The spelling of 8128356148512 in words is "eight trillion, one hundred twenty-eight billion, three hundred fifty-six million, one hundred forty-eight thousand, five hundred twelve".