528439686934825 has 48 divisors (see below), whose sum is σ = 672090399461376. Its totient is φ = 412060947379200.

The previous prime is 528439686934813. The next prime is 528439686934933.

528439686934825 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 528439686934825 - 2⁴¹ = 526240663679273 is a prime.

It is a Smith number, since the sum of its digits (82) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51016680 + ... + 60494470.

It is an arithmetic number, because the mean of its divisors is an integer number (14001883322112).

Almost surely, 2^{528439686934825} is an apocalyptic number.

It is an amenable number.

528439686934825 is a deficient number, since it is larger than the sum of its proper divisors (143650712526551).

528439686934825 is a wasteful number, since it uses less digits than its factorization.

528439686934825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9478234 (or 9478229 counting only the distinct ones).

The product of its digits is 21499084800, while the sum is 82.

The spelling of 528439686934825 in words is "five hundred twenty-eight trillion, four hundred thirty-nine billion, six hundred eighty-six million, nine hundred thirty-four thousand, eight hundred twenty-five".