128663848 has 16 divisors (see below), whose sum is σ = 242460000. Its totient is φ = 64007856.

The previous prime is 128663831. The next prime is 128663881. The reversal of 128663848 is 848366821.

It is a junction number, because it is equal to n+sod(n) for n = 128663798 and 128663807.

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, 38818 + ... + 42001.

It is an arithmetic number, because the mean of its divisors is an integer number (15153750).

Almost surely, 2^128663848 is an apocalyptic number.

It is an amenable number.

128663848 is a deficient number, since it is larger than the sum of its proper divisors (113796152).

128663848 is a wasteful number, since it uses less digits than its factorization.

128663848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81024 (or 81020 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 128663848 is about 11343.0087719264. The cubic root of 128663848 is about 504.8381640036.

The spelling of 128663848 in words is "one hundred twenty-eight million, six hundred sixty-three thousand, eight hundred forty-eight".