11726464769 has 4 divisors (see below), whose sum is σ = 11999173296. Its totient is φ = 11453756244.

The previous prime is 11726464751. The next prime is 11726464781. The reversal of 11726464769 is 96746462711.

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: 96746462711 = 1367 ⋅70772833.

It is a cyclic number.

It is not a de Polignac number, because 11726464769 - 2²⁰ = 11725416193 is a prime.

It is a super-2 number, since 2×11726464769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11726464769.

It is not an unprimeable number, because it can be changed into a prime (11726460769) 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, 136354199 + ... + 136354284.

It is an arithmetic number, because the mean of its divisors is an integer number (2999793324).

Almost surely, 2^11726464769 is an apocalyptic number.

It is an amenable number.

11726464769 is a deficient number, since it is larger than the sum of its proper divisors (272708527).

11726464769 is an equidigital number, since it uses as much as digits as its factorization.

11726464769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272708526.

The product of its digits is 3048192, while the sum is 53.

The spelling of 11726464769 in words is "eleven billion, seven hundred twenty-six million, four hundred sixty-four thousand, seven hundred sixty-nine".