133559094627729 has 27 divisors (see below), whose sum is σ = 194011486276699. Its totient is φ = 88537855410240.

The previous prime is 133559094627619. The next prime is 133559094627863. The reversal of 133559094627729 is 927726490955331.

The square root of 133559094627729 is 11556777.

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

133559094627729 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 5 + 90 + 9 + 462 + 7 + 72 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 69021651037329 + 64537443590400 = 8307927^2 + 8033520^2 .

It is not a de Polignac number, because 133559094627729 - 2⁷ = 133559094627601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133559094627029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6205978489 + ... + 6206000009.

Almost surely, 2^{133559094627729} is an apocalyptic number.

133559094627729 is the 11556777-th square number.

133559094627729 is the 5778389-th centered octagonal number.

It is an amenable number.

133559094627729 is a deficient number, since it is larger than the sum of its proper divisors (60452391648970).

133559094627729 is an frugal number, since it uses more digits than its factorization.

133559094627729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43406 (or 21703 counting only the distinct ones).

The product of its (nonzero) digits is 771573600, while the sum is 72.

The spelling of 133559094627729 in words is "one hundred thirty-three trillion, five hundred fifty-nine billion, ninety-four million, six hundred twenty-seven thousand, seven hundred twenty-nine".