11746327261 has 4 divisors (see below), whose sum is σ = 11746546812. Its totient is φ = 11746107712.

The previous prime is 11746327253. The next prime is 11746327277. The reversal of 11746327261 is 16272364711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16272364711 = 2333 ⋅6974867.

It can be written as a sum of positive squares in 2 ways, for example, as 728676036 + 11017651225 = 26994^2 + 104965^2 .

It is a cyclic number.

It is not a de Polignac number, because 11746327261 - 2³ = 11746327253 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11746327291) 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, 28725 + ... + 155941.

It is an arithmetic number, because the mean of its divisors is an integer number (2936636703).

Almost surely, 2^11746327261 is an apocalyptic number.

It is an amenable number.

11746327261 is a deficient number, since it is larger than the sum of its proper divisors (219551).

11746327261 is an equidigital number, since it uses as much as digits as its factorization.

11746327261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219550.

The product of its digits is 84672, while the sum is 40.

The spelling of 11746327261 in words is "eleven billion, seven hundred forty-six million, three hundred twenty-seven thousand, two hundred sixty-one".