11509234650 has 96 divisors (see below), whose sum is σ = 31874448000. Its totient is φ = 3053635200.

The previous prime is 11509234637. The next prime is 11509234657. The reversal of 11509234650 is 5643290511.

It is not an unprimeable number, because it can be changed into a prime (11509234657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247230 + ... + 290070.

It is an arithmetic number, because the mean of its divisors is an integer number (332025500).

Almost surely, 2^11509234650 is an apocalyptic number.

11509234650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11509234650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15937224000).

11509234650 is an abundant number, since it is smaller than the sum of its proper divisors (20365213350).

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

11509234650 is a wasteful number, since it uses less digits than its factorization.

11509234650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43061 (or 43050 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 11509234650 in words is "eleven billion, five hundred nine million, two hundred thirty-four thousand, six hundred fifty".