20044513187269 has 2 divisors, whose sum is σ = 20044513187270. Its totient is φ = 20044513187268.

The previous prime is 20044513187117. The next prime is 20044513187299. The reversal of 20044513187269 is 96278131544002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17393028545025 + 2651484642244 = 4170495^2 + 1628338^2 .

It is a cyclic number.

It is not a de Polignac number, because 20044513187269 - 2³³ = 20035923252677 is a prime.

It is a super-2 number, since 2×20044513187269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20044513187299) 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 as a sum of consecutive naturals, namely, 10022256593634 + 10022256593635.

It is an arithmetic number, because the mean of its divisors is an integer number (10022256593635).

It is a 1-persistent number, because it is pandigital, but 2⋅20044513187269 = 40089026374538 is not.

Almost surely, 2^{20044513187269} is an apocalyptic number.

It is an amenable number.

20044513187269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044513187269 is an equidigital number, since it uses as much as digits as its factorization.

20044513187269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 20044513187269 in words is "twenty trillion, forty-four billion, five hundred thirteen million, one hundred eighty-seven thousand, two hundred sixty-nine".