118989508749828 has 12 divisors (see below), whose sum is σ = 277642187082960. Its totient is φ = 39663169583272.

The previous prime is 118989508749827. The next prime is 118989508749847. The reversal of 118989508749828 is 828947805989811.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (118989508749827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4957896197898 + ... + 4957896197921.

It is an arithmetic number, because the mean of its divisors is an integer number (23136848923580).

Almost surely, 2^{118989508749828} is an apocalyptic number.

It is an amenable number.

118989508749828 is an abundant number, since it is smaller than the sum of its proper divisors (158652678333132).

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

118989508749828 is a wasteful number, since it uses less digits than its factorization.

118989508749828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915792395826 (or 9915792395824 counting only the distinct ones).

The product of its (nonzero) digits is 6688604160, while the sum is 87.

The spelling of 118989508749828 in words is "one hundred eighteen trillion, nine hundred eighty-nine billion, five hundred eight million, seven hundred forty-nine thousand, eight hundred twenty-eight".