68528804852 has 6 divisors (see below), whose sum is σ = 119925408498. Its totient is φ = 34264402424.

The previous prime is 68528804831. The next prime is 68528804881. The reversal of 68528804852 is 25840882586.

It can be written as a sum of positive squares in only one way, i.e., 67810243216 + 718561636 = 260404^2 + 26806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8566100603 + ... + 8566100610.

It is an arithmetic number, because the mean of its divisors is an integer number (19987568083).

Almost surely, 2^68528804852 is an apocalyptic number.

It is an amenable number.

68528804852 is a deficient number, since it is larger than the sum of its proper divisors (51396603646).

68528804852 is a wasteful number, since it uses less digits than its factorization.

68528804852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17132201217 (or 17132201215 counting only the distinct ones).

The product of its (nonzero) digits is 9830400, while the sum is 56.

The spelling of 68528804852 in words is "sixty-eight billion, five hundred twenty-eight million, eight hundred four thousand, eight hundred fifty-two".