11634319009 has 12 divisors (see below), whose sum is σ = 12020626156. Its totient is φ = 11258237952.

The previous prime is 11634319007. The next prime is 11634319013. The reversal of 11634319009 is 90091343611.

It can be written as a sum of positive squares in 6 ways, for example, as 1072235025 + 10562083984 = 32745^2 + 102772^2 .

It is not a de Polignac number, because 11634319009 - 2¹ = 11634319007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11634319007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176689 + ... + 233425.

Almost surely, 2^11634319009 is an apocalyptic number.

It is an amenable number.

11634319009 is a deficient number, since it is larger than the sum of its proper divisors (386307147).

11634319009 is an frugal number, since it uses more digits than its factorization.

11634319009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56916 (or 56863 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 11634319009 in words is "eleven billion, six hundred thirty-four million, three hundred nineteen thousand, nine".