11789506789 has 8 divisors (see below), whose sum is σ = 11953429272. Its totient is φ = 11625649920.

The previous prime is 11789506787. The next prime is 11789506823. The reversal of 11789506789 is 98760598711.

It can be written as a sum of positive squares in 4 ways, for example, as 549902500 + 11239604289 = 23450^2 + 106017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11789506789 - 2¹ = 11789506787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11789506787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428529 + ... + 455209.

It is an arithmetic number, because the mean of its divisors is an integer number (1494178659).

Almost surely, 2^11789506789 is an apocalyptic number.

It is an amenable number.

11789506789 is a deficient number, since it is larger than the sum of its proper divisors (163922483).

11789506789 is an equidigital number, since it uses as much as digits as its factorization.

11789506789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32807.

The product of its (nonzero) digits is 7620480, while the sum is 61.

The spelling of 11789506789 in words is "eleven billion, seven hundred eighty-nine million, five hundred six thousand, seven hundred eighty-nine".