528012925640 has 48 divisors (see below), whose sum is σ = 1217712296340. Its totient is φ = 206053798400.

The previous prime is 528012925633. The next prime is 528012925667. The reversal of 528012925640 is 46529210825.

It can be written as a sum of positive squares in 6 ways, for example, as 106710675556 + 421302250084 = 326666^2 + 649078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 528012925591 and 528012925600.

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 in 11 ways as a sum of consecutive naturals, for example, 3859091 + ... + 3993570.

Almost surely, 2^528012925640 is an apocalyptic number.

It is an amenable number.

528012925640 is an abundant number, since it is smaller than the sum of its proper divisors (689699370700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

528012925640 is a wasteful number, since it uses less digits than its factorization.

528012925640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852754 (or 7852709 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 528012925640 in words is "five hundred twenty-eight billion, twelve million, nine hundred twenty-five thousand, six hundred forty".