128327728358875 has 32 divisors (see below), whose sum is σ = 163605588516864. Its totient is φ = 100450191996000.

The previous prime is 128327728358833. The next prime is 128327728358881. The reversal of 128327728358875 is 578853827723821.

It is not a de Polignac number, because 128327728358875 - 2¹³ = 128327728350683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18324274 + ... + 24339976.

It is an arithmetic number, because the mean of its divisors is an integer number (5112674641152).

Almost surely, 2^{128327728358875} is an apocalyptic number.

128327728358875 is a deficient number, since it is larger than the sum of its proper divisors (35277860157989).

128327728358875 is an equidigital number, since it uses as much as digits as its factorization.

128327728358875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019396 (or 6019386 counting only the distinct ones).

The product of its digits is 2528870400, while the sum is 76.

The spelling of 128327728358875 in words is "one hundred twenty-eight trillion, three hundred twenty-seven billion, seven hundred twenty-eight million, three hundred fifty-eight thousand, eight hundred seventy-five".