68027816552 has 16 divisors (see below), whose sum is σ = 127697610660. Its totient is φ = 33975120384.

The previous prime is 68027816551. The next prime is 68027816567. The reversal of 68027816552 is 25561872086.

It can be written as a sum of positive squares in 2 ways, for example, as 66695128516 + 1332688036 = 258254^2 + 36506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68027816552.

It is not an unprimeable number, because it can be changed into a prime (68027816551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4841033 + ... + 4855064.

Almost surely, 2^68027816552 is an apocalyptic number.

It is an amenable number.

68027816552 is a deficient number, since it is larger than the sum of its proper divisors (59669794108).

68027816552 is a wasteful number, since it uses less digits than its factorization.

68027816552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696980 (or 9696976 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 68027816552 in words is "sixty-eight billion, twenty-seven million, eight hundred sixteen thousand, five hundred fifty-two".