11765429549 has 2 divisors, whose sum is σ = 11765429550. Its totient is φ = 11765429548.

The previous prime is 11765429537. The next prime is 11765429551. The reversal of 11765429549 is 94592456711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10923385225 + 842044324 = 104515^2 + 29018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11765429549 is a prime.

Together with 11765429551, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11765429549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11765429569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5882714774 + 5882714775.

It is an arithmetic number, because the mean of its divisors is an integer number (5882714775).

Almost surely, 2^11765429549 is an apocalyptic number.

It is an amenable number.

11765429549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11765429549 is an equidigital number, since it uses as much as digits as its factorization.

11765429549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 53.

The spelling of 11765429549 in words is "eleven billion, seven hundred sixty-five million, four hundred twenty-nine thousand, five hundred forty-nine".