11789078669 has 4 divisors (see below), whose sum is σ = 11795243196. Its totient is φ = 11782914144.

The previous prime is 11789078627. The next prime is 11789078681. The reversal of 11789078669 is 96687098711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7125554569 + 4663524100 = 84413^2 + 68290^2 .

It is a cyclic number.

It is not a de Polignac number, because 11789078669 - 2¹⁶ = 11789013133 is a prime.

It is a super-2 number, since 2×11789078669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11789078969) 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, 3079394 + ... + 3083219.

It is an arithmetic number, because the mean of its divisors is an integer number (2948810799).

Almost surely, 2^11789078669 is an apocalyptic number.

It is an amenable number.

11789078669 is a deficient number, since it is larger than the sum of its proper divisors (6164527).

11789078669 is an equidigital number, since it uses as much as digits as its factorization.

11789078669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164526.

The product of its (nonzero) digits is 9144576, while the sum is 62.

The spelling of 11789078669 in words is "eleven billion, seven hundred eighty-nine million, seventy-eight thousand, six hundred sixty-nine".