269121275361 has 15 divisors (see below), whose sum is σ = 402027645283. Its totient is φ = 179411070960.

The previous prime is 269121275321. The next prime is 269121275377. The reversal of 269121275361 is 163572121962.

The square root of 269121275361 is 518769.

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

269121275361 is a `hidden beast` number, since 2 + 6 + 9 + 1 + 212 + 75 + 361 = 666.

269121275361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3360404961 + 265760870400 = 57969^2 + 515520^2 .

It is a de Polignac number, because none of the positive numbers 2^k-269121275361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (269121275321) 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 14 ways as a sum of consecutive naturals, for example, 4640101 + ... + 4697741.

Almost surely, 2^269121275361 is an apocalyptic number.

269121275361 is the 518769-th square number.

269121275361 is the 259385-th centered octagonal number.

It is an amenable number.

269121275361 is a deficient number, since it is larger than the sum of its proper divisors (132906369922).

269121275361 is an frugal number, since it uses more digits than its factorization.

269121275361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115294 (or 57644 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 269121275361 in words is "two hundred sixty-nine billion, one hundred twenty-one million, two hundred seventy-five thousand, three hundred sixty-one".