128002705048 has 8 divisors (see below), whose sum is σ = 240005071980. Its totient is φ = 64001352520.

The previous prime is 128002705037. The next prime is 128002705057. The reversal of 128002705048 is 840507200821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 128002704998 and 128002705016.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 8000169058 + ... + 8000169073.

Almost surely, 2^128002705048 is an apocalyptic number.

It is an amenable number.

128002705048 is a deficient number, since it is larger than the sum of its proper divisors (112002366932).

128002705048 is a wasteful number, since it uses less digits than its factorization.

128002705048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16000338137 (or 16000338133 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

Adding to 128002705048 its reverse (840507200821), we get a palindrome (968509905869).

The spelling of 128002705048 in words is "one hundred twenty-eight billion, two million, seven hundred five thousand, forty-eight".