11189503860 has 96 divisors (see below), whose sum is σ = 32304932352. Its totient is φ = 2892140160.

The previous prime is 11189503823. The next prime is 11189503873. The reversal of 11189503860 is 6830598111.

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, 321427 + ... + 354533.

It is an arithmetic number, because the mean of its divisors is an integer number (336509712).

Almost surely, 2^11189503860 is an apocalyptic number.

11189503860 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 11189503860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16152466176).

11189503860 is an abundant number, since it is smaller than the sum of its proper divisors (21115428492).

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

11189503860 is a wasteful number, since it uses less digits than its factorization.

11189503860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33293 (or 33291 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 11189503860 in words is "eleven billion, one hundred eighty-nine million, five hundred three thousand, eight hundred sixty".