11648805549 has 4 divisors (see below), whose sum is σ = 15531740736. Its totient is φ = 7765870364.

The previous prime is 11648805541. The next prime is 11648805559. The reversal of 11648805549 is 94550884611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11648805549 - 2³ = 11648805541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11648805541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941467589 + ... + 1941467594.

It is an arithmetic number, because the mean of its divisors is an integer number (3882935184).

Almost surely, 2^11648805549 is an apocalyptic number.

It is an amenable number.

11648805549 is a deficient number, since it is larger than the sum of its proper divisors (3882935187).

11648805549 is an equidigital number, since it uses as much as digits as its factorization.

11648805549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882935186.

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 11648805549 in words is "eleven billion, six hundred forty-eight million, eight hundred five thousand, five hundred forty-nine".