11766137473 has 4 divisors (see below), whose sum is σ = 11774315520. Its totient is φ = 11757959428.

The previous prime is 11766137441. The next prime is 11766137479. The reversal of 11766137473 is 37473166711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37473166711 = 9689 ⋅3867599.

It is a cyclic number.

It is not a de Polignac number, because 11766137473 - 2⁵ = 11766137441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11766137479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4086865 + ... + 4089742.

It is an arithmetic number, because the mean of its divisors is an integer number (2943578880).

Almost surely, 2^11766137473 is an apocalyptic number.

It is an amenable number.

11766137473 is a deficient number, since it is larger than the sum of its proper divisors (8178047).

11766137473 is an equidigital number, since it uses as much as digits as its factorization.

11766137473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178046.

The product of its digits is 444528, while the sum is 46.

The spelling of 11766137473 in words is "eleven billion, seven hundred sixty-six million, one hundred thirty-seven thousand, four hundred seventy-three".