128885656282 has 16 divisors (see below), whose sum is σ = 199477353600. Its totient is φ = 62421475968.

The previous prime is 128885656261. The next prime is 128885656283. The reversal of 128885656282 is 282656588821.

It is a happy number.

It is a super-2 number, since 2×128885656282² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128885656282.

It is not an unprimeable number, because it can be changed into a prime (128885656283) by changing a digit.

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, 7058532 + ... + 7076767.

It is an arithmetic number, because the mean of its divisors is an integer number (12467334600).

Almost surely, 2^128885656282 is an apocalyptic number.

128885656282 is a deficient number, since it is larger than the sum of its proper divisors (70591697318).

128885656282 is a wasteful number, since it uses less digits than its factorization.

128885656282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135445.

The product of its digits is 29491200, while the sum is 61.

The spelling of 128885656282 in words is "one hundred twenty-eight billion, eight hundred eighty-five million, six hundred fifty-six thousand, two hundred eighty-two".