269264474649 has 9 divisors (see below), whose sum is σ = 388939823103. Its totient is φ = 179508611952.

The previous prime is 269264474627. The next prime is 269264474653. The reversal of 269264474649 is 946474462962.

It is a happy number.

The square root of 269264474649 is 518907.

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

269264474649 is a `hidden beast` number, since 2 + 69 + 2 + 64 + 474 + 6 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4245434649 + 265019040000 = 65157^2 + 514800^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 269264474649 - 2⁵ = 269264474617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (269264474749) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1470237 + ... + 1643205.

Almost surely, 2^269264474649 is an apocalyptic number.

269264474649 is the 518907-th square number.

269264474649 is the 259454-th centered octagonal number.

It is an amenable number.

269264474649 is a deficient number, since it is larger than the sum of its proper divisors (119675348454).

269264474649 is an frugal number, since it uses more digits than its factorization.

269264474649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345944 (or 172972 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 63.

The spelling of 269264474649 in words is "two hundred sixty-nine billion, two hundred sixty-four million, four hundred seventy-four thousand, six hundred forty-nine".