68003389453 has 2 divisors, whose sum is σ = 68003389454. Its totient is φ = 68003389452.

The previous prime is 68003389451. The next prime is 68003389457. The reversal of 68003389453 is 35498330086.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55008073444 + 12995316009 = 234538^2 + 113997^2 .

It is a cyclic number.

It is not a de Polignac number, because 68003389453 - 2¹ = 68003389451 is a prime.

Together with 68003389451, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68003389397 and 68003389406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68003389451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34001694726 + 34001694727.

It is an arithmetic number, because the mean of its divisors is an integer number (34001694727).

Almost surely, 2^68003389453 is an apocalyptic number.

It is an amenable number.

68003389453 is a deficient number, since it is larger than the sum of its proper divisors (1).

68003389453 is an equidigital number, since it uses as much as digits as its factorization.

68003389453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 68003389453 in words is "sixty-eight billion, three million, three hundred eighty-nine thousand, four hundred fifty-three".