128369882530 has 8 divisors (see below), whose sum is σ = 231065788572. Its totient is φ = 51347953008.

The previous prime is 128369882519. The next prime is 128369882549. The reversal of 128369882530 is 35288963821.

It can be written as a sum of positive squares in 2 ways, for example, as 119564499961 + 8805382569 = 345781^2 + 93837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6418494117 + ... + 6418494136.

Almost surely, 2^128369882530 is an apocalyptic number.

128369882530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128369882530 is a deficient number, since it is larger than the sum of its proper divisors (102695906042).

128369882530 is a wasteful number, since it uses less digits than its factorization.

128369882530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12836988260.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 128369882530 in words is "one hundred twenty-eight billion, three hundred sixty-nine million, eight hundred eighty-two thousand, five hundred thirty".