128218443276 has 108 divisors (see below), whose sum is σ = 382536228984. Its totient is φ = 33303473280.

The previous prime is 128218443259. The next prime is 128218443281. The reversal of 128218443276 is 672344812821.

128218443276 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128218443276² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 829921 + ... + 972216.

Almost surely, 2^128218443276 is an apocalyptic number.

It is an amenable number.

128218443276 is an abundant number, since it is smaller than the sum of its proper divisors (254317785708).

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

128218443276 is a wasteful number, since it uses less digits than its factorization.

128218443276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802180 (or 1802160 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The spelling of 128218443276 in words is "one hundred twenty-eight billion, two hundred eighteen million, four hundred forty-three thousand, two hundred seventy-six".