68348355251653 has 2 divisors, whose sum is σ = 68348355251654. Its totient is φ = 68348355251652.

The previous prime is 68348355251639. The next prime is 68348355251741. The reversal of 68348355251653 is 35615255384386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37147830389604 + 31200524862049 = 6094902^2 + 5585743^2 .

It is a cyclic number.

It is not a de Polignac number, because 68348355251653 - 2²⁵ = 68348321697221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68348355251623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34174177625826 + 34174177625827.

It is an arithmetic number, because the mean of its divisors is an integer number (34174177625827).

Almost surely, 2^{68348355251653} is an apocalyptic number.

It is an amenable number.

68348355251653 is a deficient number, since it is larger than the sum of its proper divisors (1).

68348355251653 is an equidigital number, since it uses as much as digits as its factorization.

68348355251653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040000, while the sum is 64.

The spelling of 68348355251653 in words is "sixty-eight trillion, three hundred forty-eight billion, three hundred fifty-five million, two hundred fifty-one thousand, six hundred fifty-three".