11548811828 has 12 divisors (see below), whose sum is σ = 20297162340. Its totient is φ = 5749622592.

The previous prime is 11548811809. The next prime is 11548811831. The reversal of 11548811828 is 82811884511.

It can be written as a sum of positive squares in 2 ways, for example, as 4637882404 + 6910929424 = 68102^2 + 83132^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6194783 + ... + 6196646.

It is an arithmetic number, because the mean of its divisors is an integer number (1691430195).

Almost surely, 2^11548811828 is an apocalyptic number.

It is an amenable number.

11548811828 is a deficient number, since it is larger than the sum of its proper divisors (8748350512).

11548811828 is a wasteful number, since it uses less digits than its factorization.

11548811828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391666 (or 12391664 counting only the distinct ones).

The product of its digits is 163840, while the sum is 47.

The spelling of 11548811828 in words is "eleven billion, five hundred forty-eight million, eight hundred eleven thousand, eight hundred twenty-eight".