11787708969 has 12 divisors (see below), whose sum is σ = 17028613056. Its totient is φ = 7857585432.

The previous prime is 11787708949. The next prime is 11787709007. The reversal of 11787708969 is 96980778711.

11787708969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11787708969 - 2⁵ = 11787708937 is a prime.

It is a super-2 number, since 2×11787708969² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11787708949) 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 in 11 ways as a sum of consecutive naturals, for example, 15964 + ... + 154370.

It is an arithmetic number, because the mean of its divisors is an integer number (1419051088).

Almost surely, 2^11787708969 is an apocalyptic number.

It is an amenable number.

11787708969 is a deficient number, since it is larger than the sum of its proper divisors (5240904087).

11787708969 is a wasteful number, since it uses less digits than its factorization.

11787708969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147876 (or 147873 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 63.

The spelling of 11787708969 in words is "eleven billion, seven hundred eighty-seven million, seven hundred eight thousand, nine hundred sixty-nine".