11766407449 has 4 divisors (see below), whose sum is σ = 11785986100. Its totient is φ = 11746828800.

The previous prime is 11766407363. The next prime is 11766407467. The reversal of 11766407449 is 94470466711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94470466711 = 1087 ⋅86909353.

It can be written as a sum of positive squares in 2 ways, for example, as 4520141824 + 7246265625 = 67232^2 + 85125^2 .

It is a cyclic number.

It is not a de Polignac number, because 11766407449 - 2¹¹ = 11766405401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11766407749) 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, 9788424 + ... + 9789625.

It is an arithmetic number, because the mean of its divisors is an integer number (2946496525).

Almost surely, 2^11766407449 is an apocalyptic number.

It is an amenable number.

11766407449 is a deficient number, since it is larger than the sum of its proper divisors (19578651).

11766407449 is an equidigital number, since it uses as much as digits as its factorization.

11766407449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19578650.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 11766407449 in words is "eleven billion, seven hundred sixty-six million, four hundred seven thousand, four hundred forty-nine".