128548696680 has 256 divisors, whose sum is σ = 454046342400. Its totient is φ = 32238673920.

The previous prime is 128548696603. The next prime is 128548696699. The reversal of 128548696680 is 86696845821.

128548696680 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 486 + 96 + 68 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43530084 + ... + 43533036.

It is an arithmetic number, because the mean of its divisors is an integer number (1773618525).

Almost surely, 2^128548696680 is an apocalyptic number.

128548696680 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 128548696680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227023171200).

128548696680 is an abundant number, since it is smaller than the sum of its proper divisors (325497645720).

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

128548696680 is a wasteful number, since it uses less digits than its factorization.

128548696680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361 (or 5351 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 128548696680 in words is "one hundred twenty-eight billion, five hundred forty-eight million, six hundred ninety-six thousand, six hundred eighty".