128325663852825 has 48 divisors (see below), whose sum is σ = 213903915523200. Its totient is φ = 67881614929920.

The previous prime is 128325663852791. The next prime is 128325663852829. The reversal of 128325663852825 is 528258366523821.

It is not a de Polignac number, because 128325663852825 - 2⁸ = 128325663852569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128325663852829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8830344 + ... + 18292793.

It is an arithmetic number, because the mean of its divisors is an integer number (4456331573400).

Almost surely, 2^{128325663852825} is an apocalyptic number.

128325663852825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128325663852825 is a deficient number, since it is larger than the sum of its proper divisors (85578251670375).

128325663852825 is a wasteful number, since it uses less digits than its factorization.

128325663852825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27123666 (or 27123661 counting only the distinct ones).

The product of its digits is 331776000, while the sum is 66.

The spelling of 128325663852825 in words is "one hundred twenty-eight trillion, three hundred twenty-five billion, six hundred sixty-three million, eight hundred fifty-two thousand, eight hundred twenty-five".