269087705555449 has 27 divisors (see below), whose sum is σ = 302210575071951. Its totient is φ = 239412849867840.

The previous prime is 269087705555441. The next prime is 269087705555519. The reversal of 269087705555449 is 944555507780962.

It is a happy number.

The square root of 269087705555449 is 16403893.

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

It can be written as a sum of positive squares in only one way, i.e., 255689470225849 + 13398235329600 = 15990293^2 + 3660360^2 .

It is not a de Polignac number, because 269087705555449 - 2³ = 269087705555441 is a prime.

It is a super-2 number, since 2×269087705555449² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (269087705555441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8480796817 + ... + 8480828545.

Almost surely, 2^{269087705555449} is an apocalyptic number.

269087705555449 is the 16403893-rd square number.

269087705555449 is the 8201947-th centered octagonal number.

It is an amenable number.

269087705555449 is a deficient number, since it is larger than the sum of its proper divisors (33122869516502).

269087705555449 is an frugal number, since it uses more digits than its factorization.

269087705555449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63574 (or 31787 counting only the distinct ones).

The product of its (nonzero) digits is 3810240000, while the sum is 76.

The spelling of 269087705555449 in words is "two hundred sixty-nine trillion, eighty-seven billion, seven hundred five million, five hundred fifty-five thousand, four hundred forty-nine".