128213852276 has 12 divisors (see below), whose sum is σ = 224378034720. Its totient is φ = 64105842360.

The previous prime is 128213852269. The next prime is 128213852339. The reversal of 128213852276 is 672258312821.

It is a self number, because there is not a number n which added to its sum of digits gives 128213852276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33161 + ... + 507471.

It is an arithmetic number, because the mean of its divisors is an integer number (18698169560).

Almost surely, 2^128213852276 is an apocalyptic number.

It is an amenable number.

128213852276 is a deficient number, since it is larger than the sum of its proper divisors (96164182444).

128213852276 is a wasteful number, since it uses less digits than its factorization.

128213852276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541894 (or 541892 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The spelling of 128213852276 in words is "one hundred twenty-eight billion, two hundred thirteen million, eight hundred fifty-two thousand, two hundred seventy-six".