128740430045760 has 448 divisors, whose sum is σ = 476003740326912. Its totient is φ = 29191242645504.

The previous prime is 128740430045707. The next prime is 128740430045767. The reversal of 128740430045760 is 67540034047821.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (128740430045767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3516114 + ... + 16426926.

It is an arithmetic number, because the mean of its divisors is an integer number (1062508348944).

Almost surely, 2^{128740430045760} is an apocalyptic number.

128740430045760 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 128740430045760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238001870163456).

128740430045760 is an abundant number, since it is smaller than the sum of its proper divisors (347263310281152).

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

128740430045760 is a wasteful number, since it uses less digits than its factorization.

128740430045760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910910 (or 12910900 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 128740430045760 in words is "one hundred twenty-eight trillion, seven hundred forty billion, four hundred thirty million, forty-five thousand, seven hundred sixty".