11182489820 has 24 divisors (see below), whose sum is σ = 23494665600. Its totient is φ = 4470817472.

The previous prime is 11182489793. The next prime is 11182489837. The reversal of 11182489820 is 2898428111.

It is a congruent number.

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, 93740 + ... + 176499.

It is an arithmetic number, because the mean of its divisors is an integer number (978944400).

Almost surely, 2^11182489820 is an apocalyptic number.

11182489820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11182489820 is an abundant number, since it is smaller than the sum of its proper divisors (12312175780).

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

11182489820 is a wasteful number, since it uses less digits than its factorization.

11182489820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272317 (or 272315 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 44.

The spelling of 11182489820 in words is "eleven billion, one hundred eighty-two million, four hundred eighty-nine thousand, eight hundred twenty".