13243577327172 has 72 divisors (see below), whose sum is σ = 34423996285952. Its totient is φ = 4289917723200.

The previous prime is 13243577327083. The next prime is 13243577327173. The reversal of 13243577327172 is 27172377534231.

13243577327172 is a `hidden beast` number, since 1 + 3 + 2 + 43 + 577 + 3 + 27 + 1 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (13243577327173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5049604 + ... + 7210107.

Almost surely, 2^{13243577327172} is an apocalyptic number.

13243577327172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13243577327172 is an abundant number, since it is smaller than the sum of its proper divisors (21180418958780).

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

13243577327172 is a wasteful number, since it uses less digits than its factorization.

13243577327172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12260569 (or 12260564 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 54.

The spelling of 13243577327172 in words is "thirteen trillion, two hundred forty-three billion, five hundred seventy-seven million, three hundred twenty-seven thousand, one hundred seventy-two".