828568708884520 has 32 divisors (see below), whose sum is σ = 1945335229557120. Its totient is φ = 317017592964160.

The previous prime is 828568708884481. The next prime is 828568708884571. The reversal of 828568708884520 is 25488807865828.

It is a super-2 number, since 2×828568708884520² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450309079996 + ... + 450309081835.

It is an arithmetic number, because the mean of its divisors is an integer number (60791725923660).

Almost surely, 2^{828568708884520} is an apocalyptic number.

It is an amenable number.

828568708884520 is an abundant number, since it is smaller than the sum of its proper divisors (1116766520672600).

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

828568708884520 is a wasteful number, since it uses less digits than its factorization.

828568708884520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900618161865 (or 900618161861 counting only the distinct ones).

The product of its (nonzero) digits is 4404019200, while the sum is 79.

The spelling of 828568708884520 in words is "eight hundred twenty-eight trillion, five hundred sixty-eight billion, seven hundred eight million, eight hundred eighty-four thousand, five hundred twenty".