11726173049 has 2 divisors, whose sum is σ = 11726173050. Its totient is φ = 11726173048.

The previous prime is 11726173033. The next prime is 11726173051. The reversal of 11726173049 is 94037162711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11716980025 + 9193024 = 108245^2 + 3032^2 .

It is an emirp because it is prime and its reverse (94037162711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11726173049 - 2⁴ = 11726173033 is a prime.

Together with 11726173051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11726172997 and 11726173015.

It is not a weakly prime, because it can be changed into another prime (11726173009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5863086524 + 5863086525.

It is an arithmetic number, because the mean of its divisors is an integer number (5863086525).

Almost surely, 2^11726173049 is an apocalyptic number.

It is an amenable number.

11726173049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11726173049 is an equidigital number, since it uses as much as digits as its factorization.

11726173049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 11726173049 in words is "eleven billion, seven hundred twenty-six million, one hundred seventy-three thousand, forty-nine".