11689501080 has 128 divisors (see below), whose sum is σ = 36343572480. Its totient is φ = 3004661760.

The previous prime is 11689501051. The next prime is 11689501127. The reversal of 11689501080 is 8010598611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949927 + ... + 962153.

It is an arithmetic number, because the mean of its divisors is an integer number (283934160).

Almost surely, 2^11689501080 is an apocalyptic number.

11689501080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11689501080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18171786240).

11689501080 is an abundant number, since it is smaller than the sum of its proper divisors (24654071400).

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

11689501080 is a wasteful number, since it uses less digits than its factorization.

11689501080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12529 (or 12525 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 39.

The spelling of 11689501080 in words is "eleven billion, six hundred eighty-nine million, five hundred one thousand, eighty".