128048921208 has 96 divisors (see below), whose sum is σ = 374553270000. Its totient is φ = 39286024704.

The previous prime is 128048921183. The next prime is 128048921219. The reversal of 128048921208 is 802129840821.

128048921208 is a `hidden beast` number, since 128 + 0 + 489 + 21 + 20 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127668 + ... + 521916.

Almost surely, 2^128048921208 is an apocalyptic number.

128048921208 is a gapful number since it is divisible by the number (18) 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 128048921208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187276635000).

128048921208 is an abundant number, since it is smaller than the sum of its proper divisors (246504348792).

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

128048921208 is a wasteful number, since it uses less digits than its factorization.

128048921208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394621 (or 394614 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 128048921208 in words is "one hundred twenty-eight billion, forty-eight million, nine hundred twenty-one thousand, two hundred eight".