128746271248 has 40 divisors (see below), whose sum is σ = 286673705280. Its totient is φ = 54868713600.

The previous prime is 128746271239. The next prime is 128746271273. The reversal of 128746271248 is 842172647821.

It is a junction number, because it is equal to n+sod(n) for n = 128746271195 and 128746271204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190903 + ... + 3230998.

It is an arithmetic number, because the mean of its divisors is an integer number (7166842632).

Almost surely, 2^128746271248 is an apocalyptic number.

It is an amenable number.

128746271248 is an abundant number, since it is smaller than the sum of its proper divisors (157927434032).

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

128746271248 is a wasteful number, since it uses less digits than its factorization.

128746271248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422095 (or 6422089 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 52.

The spelling of 128746271248 in words is "one hundred twenty-eight billion, seven hundred forty-six million, two hundred seventy-one thousand, two hundred forty-eight".