128381536673875 has 16 divisors (see below), whose sum is σ = 160220733970752. Its totient is φ = 102704859979200.

The previous prime is 128381536673869. The next prime is 128381536673881. The reversal of 128381536673875 is 578376635183821.

It is an interprime number because it is at equal distance from previous prime (128381536673869) and next prime (128381536673881).

It is not a de Polignac number, because 128381536673875 - 2²⁹ = 128380999802963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128381536673798 and 128381536673807.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36167527 + ... + 39558223.

It is an arithmetic number, because the mean of its divisors is an integer number (10013795873172).

Almost surely, 2^{128381536673875} is an apocalyptic number.

128381536673875 is a deficient number, since it is larger than the sum of its proper divisors (31839197296877).

128381536673875 is an equidigital number, since it uses as much as digits as its factorization.

128381536673875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693615 (or 3693605 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 73.

The spelling of 128381536673875 in words is "one hundred twenty-eight trillion, three hundred eighty-one billion, five hundred thirty-six million, six hundred seventy-three thousand, eight hundred seventy-five".