68055765625 has 21 divisors (see below), whose sum is σ = 85109398867. Its totient is φ = 54418525000.

The previous prime is 68055765601. The next prime is 68055765647. The reversal of 68055765625 is 52656755086.

The square root of 68055765625 is 260875.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 59623384041 + 8432381584 = 244179^2 + 91828^2 .

It is not a de Polignac number, because 68055765625 - 2¹¹ = 68055763577 is a prime.

It is a Duffinian number.

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 20 ways as a sum of consecutive naturals, for example, 32608332 + ... + 32610418.

Almost surely, 2^68055765625 is an apocalyptic number.

68055765625 is the 260875-th square number.

68055765625 is the 130438-th centered octagonal number.

It is an amenable number.

68055765625 is a deficient number, since it is larger than the sum of its proper divisors (17053633242).

68055765625 is an frugal number, since it uses more digits than its factorization.

68055765625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 55.

The spelling of 68055765625 in words is "sixty-eight billion, fifty-five million, seven hundred sixty-five thousand, six hundred twenty-five".