11530559649 has 8 divisors (see below), whose sum is σ = 17570376640. Its totient is φ = 6588891216.

The previous prime is 11530559627. The next prime is 11530559669. The reversal of 11530559649 is 94695503511.

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

It is not a de Polignac number, because 11530559649 - 2⁹ = 11530559137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11530559598 and 11530559607.

It is not an unprimeable number, because it can be changed into a prime (11530559669) 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, 274537114 + ... + 274537155.

It is an arithmetic number, because the mean of its divisors is an integer number (2196297080).

Almost surely, 2^11530559649 is an apocalyptic number.

It is an amenable number.

11530559649 is a deficient number, since it is larger than the sum of its proper divisors (6039816991).

11530559649 is an equidigital number, since it uses as much as digits as its factorization.

11530559649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549074279.

The product of its (nonzero) digits is 729000, while the sum is 48.

The spelling of 11530559649 in words is "eleven billion, five hundred thirty million, five hundred fifty-nine thousand, six hundred forty-nine".