11389560648 has 32 divisors (see below), whose sum is σ = 28484235360. Its totient is φ = 3795142400.

The previous prime is 11389560643. The next prime is 11389560661. The reversal of 11389560648 is 84606598311.

It is a self number, because there is not a number n which added to its sum of digits gives 11389560648.

It is not an unprimeable number, because it can be changed into a prime (11389560643) 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 7 ways as a sum of consecutive naturals, for example, 17490 + ... + 151937.

It is an arithmetic number, because the mean of its divisors is an integer number (890132355).

Almost surely, 2^11389560648 is an apocalyptic number.

It is an amenable number.

11389560648 is an abundant number, since it is smaller than the sum of its proper divisors (17094674712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11389560648 is a wasteful number, since it uses less digits than its factorization.

11389560648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172237 (or 172233 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 11389560648 in words is "eleven billion, three hundred eighty-nine million, five hundred sixty thousand, six hundred forty-eight".