11749056811 has 4 divisors (see below), whose sum is σ = 12259885392. Its totient is φ = 11238228232.

The previous prime is 11749056743. The next prime is 11749056827. The reversal of 11749056811 is 11865094711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11865094711 = 19 ⋅624478669.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11749056811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11749056841) 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, 255414256 + ... + 255414301.

It is an arithmetic number, because the mean of its divisors is an integer number (3064971348).

Almost surely, 2^11749056811 is an apocalyptic number.

11749056811 is a deficient number, since it is larger than the sum of its proper divisors (510828581).

11749056811 is an equidigital number, since it uses as much as digits as its factorization.

11749056811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510828580.

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 11749056811 in words is "eleven billion, seven hundred forty-nine million, fifty-six thousand, eight hundred eleven".