128248786708475 has 6 divisors (see below), whose sum is σ = 159028495518540. Its totient is φ = 102599029366760.

The previous prime is 128248786708457. The next prime is 128248786708487. The reversal of 128248786708475 is 574807687842821.

It is not a de Polignac number, because 128248786708475 - 2⁶ = 128248786708411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128248786708396 and 128248786708405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2564975734145 + ... + 2564975734194.

It is an arithmetic number, because the mean of its divisors is an integer number (26504749253090).

Almost surely, 2^{128248786708475} is an apocalyptic number.

128248786708475 is a deficient number, since it is larger than the sum of its proper divisors (30779708810065).

128248786708475 is an equidigital number, since it uses as much as digits as its factorization.

128248786708475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129951468349 (or 5129951468344 counting only the distinct ones).

The product of its (nonzero) digits is 2697461760, while the sum is 77.

The spelling of 128248786708475 in words is "one hundred twenty-eight trillion, two hundred forty-eight billion, seven hundred eighty-six million, seven hundred eight thousand, four hundred seventy-five".