11800748761 has 4 divisors (see below), whose sum is σ = 12023404452. Its totient is φ = 11578093072.

The previous prime is 11800748753. The next prime is 11800748777. The reversal of 11800748761 is 16784700811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16784700811 = 317 ⋅52948583.

It can be written as a sum of positive squares in 2 ways, for example, as 9686496400 + 2114252361 = 98420^2 + 45981^2 .

It is a cyclic number.

It is not a de Polignac number, because 11800748761 - 2³ = 11800748753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11800742761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111327766 + ... + 111327871.

It is an arithmetic number, because the mean of its divisors is an integer number (3005851113).

Almost surely, 2^11800748761 is an apocalyptic number.

It is an amenable number.

11800748761 is a deficient number, since it is larger than the sum of its proper divisors (222655691).

11800748761 is an equidigital number, since it uses as much as digits as its factorization.

11800748761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222655690.

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 11800748761 in words is "eleven billion, eight hundred million, seven hundred forty-eight thousand, seven hundred sixty-one".