11789078969 has 2 divisors, whose sum is σ = 11789078970. Its totient is φ = 11789078968.

The previous prime is 11789078963. The next prime is 11789078971. The reversal of 11789078969 is 96987098711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8259174400 + 3529904569 = 90880^2 + 59413^2 .

It is a cyclic number.

It is not a de Polignac number, because 11789078969 - 2³² = 7494111673 is a prime.

It is a super-2 number, since 2×11789078969² (a number of 21 digits) contains 22 as substring.

Together with 11789078971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11789078963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5894539484 + 5894539485.

It is an arithmetic number, because the mean of its divisors is an integer number (5894539485).

Almost surely, 2^11789078969 is an apocalyptic number.

It is an amenable number.

11789078969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11789078969 is an equidigital number, since it uses as much as digits as its factorization.

11789078969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 65.

The spelling of 11789078969 in words is "eleven billion, seven hundred eighty-nine million, seventy-eight thousand, nine hundred sixty-nine".