68812568753 has 2 divisors, whose sum is σ = 68812568754. Its totient is φ = 68812568752.

The previous prime is 68812568731. The next prime is 68812568779. The reversal of 68812568753 is 35786521886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48247001104 + 20565567649 = 219652^2 + 143407^2 .

It is a cyclic number.

It is not a de Polignac number, because 68812568753 - 2³² = 64517601457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68812568692 and 68812568701.

It is not a weakly prime, because it can be changed into another prime (68812568053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34406284376 + 34406284377.

It is an arithmetic number, because the mean of its divisors is an integer number (34406284377).

Almost surely, 2^68812568753 is an apocalyptic number.

It is an amenable number.

68812568753 is a deficient number, since it is larger than the sum of its proper divisors (1).

68812568753 is an equidigital number, since it uses as much as digits as its factorization.

68812568753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 59.

The spelling of 68812568753 in words is "sixty-eight billion, eight hundred twelve million, five hundred sixty-eight thousand, seven hundred fifty-three".