128168812048 has 80 divisors (see below), whose sum is σ = 260681013760. Its totient is φ = 60970060800.

The previous prime is 128168812027. The next prime is 128168812117. The reversal of 128168812048 is 840218861821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128168811992 and 128168812010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17974948 + ... + 17982076.

It is an arithmetic number, because the mean of its divisors is an integer number (3258512672).

Almost surely, 2^128168812048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128168812048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130340506880).

128168812048 is an abundant number, since it is smaller than the sum of its proper divisors (132512201712).

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

128168812048 is a wasteful number, since it uses less digits than its factorization.

128168812048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776 (or 7770 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 49.

The spelling of 128168812048 in words is "one hundred twenty-eight billion, one hundred sixty-eight million, eight hundred twelve thousand, forty-eight".