11378511269 has 2 divisors, whose sum is σ = 11378511270. Its totient is φ = 11378511268.

The previous prime is 11378511259. The next prime is 11378511271. The reversal of 11378511269 is 96211587311.

11378511269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6708429025 + 4670082244 = 81905^2 + 68338^2 .

It is a cyclic number.

It is not a de Polignac number, because 11378511269 - 2²⁴ = 11361734053 is a prime.

It is a super-2 number, since 2×11378511269² (a number of 21 digits) contains 22 as substring.

Together with 11378511271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11378511239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5689255634 + 5689255635.

It is an arithmetic number, because the mean of its divisors is an integer number (5689255635).

Almost surely, 2^11378511269 is an apocalyptic number.

It is an amenable number.

11378511269 is a deficient number, since it is larger than the sum of its proper divisors (1).

11378511269 is an equidigital number, since it uses as much as digits as its factorization.

11378511269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 44.

The spelling of 11378511269 in words is "eleven billion, three hundred seventy-eight million, five hundred eleven thousand, two hundred sixty-nine".