11789511789 has 16 divisors (see below), whose sum is σ = 17158052160. Its totient is φ = 7141128960.

The previous prime is 11789511751. The next prime is 11789511809. The reversal of 11789511789 is 98711598711.

It is not a de Polignac number, because 11789511789 - 2¹⁵ = 11789479021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11789511719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40812 + ... + 158885.

It is an arithmetic number, because the mean of its divisors is an integer number (1072378260).

Almost surely, 2^11789511789 is an apocalyptic number.

It is an amenable number.

11789511789 is a deficient number, since it is larger than the sum of its proper divisors (5368540371).

11789511789 is a wasteful number, since it uses less digits than its factorization.

11789511789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201500.

The product of its digits is 1270080, while the sum is 57.

The spelling of 11789511789 in words is "eleven billion, seven hundred eighty-nine million, five hundred eleven thousand, seven hundred eighty-nine".