11609087999 has 16 divisors (see below), whose sum is σ = 11960524800. Its totient is φ = 11264345664.

The previous prime is 11609087957. The next prime is 11609088017. The reversal of 11609087999 is 99978090611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11609087999 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 (11609087909) 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, 1169234 + ... + 1179120.

It is an arithmetic number, because the mean of its divisors is an integer number (747532800).

Almost surely, 2^11609087999 is an apocalyptic number.

11609087999 is a deficient number, since it is larger than the sum of its proper divisors (351436801).

11609087999 is an equidigital number, since it uses as much as digits as its factorization.

11609087999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222.

The product of its (nonzero) digits is 2204496, while the sum is 59.

The spelling of 11609087999 in words is "eleven billion, six hundred nine million, eighty-seven thousand, nine hundred ninety-nine".