11732609261 has 4 divisors (see below), whose sum is σ = 11744378172. Its totient is φ = 11720840352.

The previous prime is 11732609227. The next prime is 11732609267. The reversal of 11732609261 is 16290623711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9849570025 + 1883039236 = 99245^2 + 43394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11732609261 is a prime.

It is a super-2 number, since 2×11732609261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11732609267) 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 3 ways as a sum of consecutive naturals, for example, 5882960 + ... + 5884953.

It is an arithmetic number, because the mean of its divisors is an integer number (2936094543).

Almost surely, 2^11732609261 is an apocalyptic number.

It is an amenable number.

11732609261 is a deficient number, since it is larger than the sum of its proper divisors (11768911).

11732609261 is an equidigital number, since it uses as much as digits as its factorization.

11732609261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11768910.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 11732609261 in words is "eleven billion, seven hundred thirty-two million, six hundred nine thousand, two hundred sixty-one".