528630800000 has 96 divisors (see below), whose sum is σ = 1316331335340. Its totient is φ = 211452160000.

The previous prime is 528630799999. The next prime is 528630800011. The reversal of 528630800000 is 8036825.

It can be written as a sum of positive squares in 6 ways, for example, as 213658421824 + 314972378176 = 462232^2 + 561224^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 528630800000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260789 + ... + 1060788.

Almost surely, 2^528630800000 is an apocalyptic number.

528630800000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

528630800000 is an abundant number, since it is smaller than the sum of its proper divisors (787700535340).

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

528630800000 is an frugal number, since it uses more digits than its factorization.

528630800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321616 (or 1321584 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 528630800000 its reverse (8036825), we get a palindrome (528638836825).

The spelling of 528630800000 in words is "five hundred twenty-eight billion, six hundred thirty million, eight hundred thousand".