128345048021750 has 32 divisors (see below), whose sum is σ = 274585062742848. Its totient is φ = 44004016464000.

The previous prime is 128345048021717. The next prime is 128345048021767. The reversal of 128345048021750 is 57120840543821.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36670011971 + ... + 36670015470.

It is an arithmetic number, because the mean of its divisors is an integer number (8580783210714).

Almost surely, 2^{128345048021750} is an apocalyptic number.

128345048021750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128345048021750 is an abundant number, since it is smaller than the sum of its proper divisors (146240014721098).

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

128345048021750 is an equidigital number, since it uses as much as digits as its factorization.

128345048021750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73340027465 (or 73340027455 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 128345048021750 in words is "one hundred twenty-eight trillion, three hundred forty-five billion, forty-eight million, twenty-one thousand, seven hundred fifty".