128247882856 has 16 divisors (see below), whose sum is σ = 240857064900. Its totient is φ = 64019332224.

The previous prime is 128247882767. The next prime is 128247882857. The reversal of 128247882856 is 658288742821.

It can be written as a sum of positive squares in 2 ways, for example, as 128199802500 + 48080356 = 358050^2 + 6934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 128247882794 and 128247882803.

It is not an unprimeable number, because it can be changed into a prime (128247882857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13070941 + ... + 13080748.

Almost surely, 2^128247882856 is an apocalyptic number.

It is an amenable number.

128247882856 is a deficient number, since it is larger than the sum of its proper divisors (112609182044).

128247882856 is a wasteful number, since it uses less digits than its factorization.

128247882856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26152308 (or 26152304 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 61.

The spelling of 128247882856 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, eight hundred fifty-six".