11535809389 has 16 divisors (see below), whose sum is σ = 12505135104. Its totient is φ = 10578412800.

The previous prime is 11535809339. The next prime is 11535809407. The reversal of 11535809389 is 98390853511.

It is a cyclic number.

It is not a de Polignac number, because 11535809389 - 2¹¹ = 11535807341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11535809339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1346052 + ... + 1354594.

It is an arithmetic number, because the mean of its divisors is an integer number (781570944).

Almost surely, 2^11535809389 is an apocalyptic number.

It is an amenable number.

11535809389 is a deficient number, since it is larger than the sum of its proper divisors (969325715).

11535809389 is a wasteful number, since it uses less digits than its factorization.

11535809389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The spelling of 11535809389 in words is "eleven billion, five hundred thirty-five million, eight hundred nine thousand, three hundred eighty-nine".