11535809388 has 24 divisors (see below), whose sum is σ = 26925259200. Its totient is φ = 3844074000.

The previous prime is 11535809339. The next prime is 11535809407. The reversal of 11535809388 is 88390853511.

It is a self number, because there is not a number n which added to its sum of digits gives 11535809388.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108838 + ... + 186861.

It is an arithmetic number, because the mean of its divisors is an integer number (1121885800).

Almost surely, 2^11535809388 is an apocalyptic number.

It is an amenable number.

11535809388 is an abundant number, since it is smaller than the sum of its proper divisors (15389449812).

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

11535809388 is a wasteful number, since it uses less digits than its factorization.

11535809388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298957 (or 298955 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 11535809388 in words is "eleven billion, five hundred thirty-five million, eight hundred nine thousand, three hundred eighty-eight".