128788548480 has 640 divisors, whose sum is σ = 472436949600. Its totient is φ = 33423114240.

The previous prime is 128788548437. The next prime is 128788548481. The reversal of 128788548480 is 84845887821.

128788548480 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 8 + 8 + 548 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128788548481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 439551214 + ... + 439551506.

Almost surely, 2^128788548480 is an apocalyptic number.

128788548480 is a gapful number since it is divisible by the number (10) 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 128788548480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236218474800).

128788548480 is an abundant number, since it is smaller than the sum of its proper divisors (343648401120).

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

128788548480 is a wasteful number, since it uses less digits than its factorization.

128788548480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 36700160, while the sum is 63.

The spelling of 128788548480 in words is "one hundred twenty-eight billion, seven hundred eighty-eight million, five hundred forty-eight thousand, four hundred eighty".