68608572835757 has 2 divisors, whose sum is σ = 68608572835758. Its totient is φ = 68608572835756.

The previous prime is 68608572835703. The next prime is 68608572835799. The reversal of 68608572835757 is 75753827580686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47002939745161 + 21605633090596 = 6855869^2 + 4648186^2 .

It is a cyclic number.

It is not a de Polignac number, because 68608572835757 - 2¹² = 68608572831661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68608572832757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34304286417878 + 34304286417879.

It is an arithmetic number, because the mean of its divisors is an integer number (34304286417879).

Almost surely, 2^{68608572835757} is an apocalyptic number.

It is an amenable number.

68608572835757 is a deficient number, since it is larger than the sum of its proper divisors (1).

68608572835757 is an equidigital number, since it uses as much as digits as its factorization.

68608572835757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4741632000, while the sum is 77.

The spelling of 68608572835757 in words is "sixty-eight trillion, six hundred eight billion, five hundred seventy-two million, eight hundred thirty-five thousand, seven hundred fifty-seven".