13243781645633 has 24 divisors (see below), whose sum is σ = 16638422955840. Its totient is φ = 10318833439200.

The previous prime is 13243781645609. The next prime is 13243781645687. The reversal of 13243781645633 is 33654618734231.

It is not a de Polignac number, because 13243781645633 - 2⁶ = 13243781645569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13243781645333) 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, 8083718 + ... + 9583008.

It is an arithmetic number, because the mean of its divisors is an integer number (693267623160).

Almost surely, 2^{13243781645633} is an apocalyptic number.

It is an amenable number.

13243781645633 is a deficient number, since it is larger than the sum of its proper divisors (3394641310207).

13243781645633 is a wasteful number, since it uses less digits than its factorization.

13243781645633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509749 (or 1509738 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 56.

The spelling of 13243781645633 in words is "thirteen trillion, two hundred forty-three billion, seven hundred eighty-one million, six hundred forty-five thousand, six hundred thirty-three".