11689328717980 has 48 divisors (see below), whose sum is σ = 25465997229120. Its totient is φ = 4501710338048.

The previous prime is 11689328717971. The next prime is 11689328718007. The reversal of 11689328717980 is 8971782398611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28342024 + ... + 28751503.

It is an arithmetic number, because the mean of its divisors is an integer number (530541608940).

Almost surely, 2^{11689328717980} is an apocalyptic number.

11689328717980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11689328717980 is an abundant number, since it is smaller than the sum of its proper divisors (13776668511140).

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

11689328717980 is a wasteful number, since it uses less digits than its factorization.

11689328717980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57093918 (or 57093916 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 70.

The spelling of 11689328717980 in words is "eleven trillion, six hundred eighty-nine billion, three hundred twenty-eight million, seven hundred seventeen thousand, nine hundred eighty".