67698523107073 has 2 divisors, whose sum is σ = 67698523107074. Its totient is φ = 67698523107072.

The previous prime is 67698523107049. The next prime is 67698523107107. The reversal of 67698523107073 is 37070132589676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35850299950144 + 31848223156929 = 5987512^2 + 5643423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67698523107073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67698523106996 and 67698523107014.

It is not a weakly prime, because it can be changed into another prime (67698523807073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33849261553536 + 33849261553537.

It is an arithmetic number, because the mean of its divisors is an integer number (33849261553537).

Almost surely, 2^{67698523107073} is an apocalyptic number.

It is an amenable number.

67698523107073 is a deficient number, since it is larger than the sum of its proper divisors (1).

67698523107073 is an equidigital number, since it uses as much as digits as its factorization.

67698523107073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80015040, while the sum is 64.

The spelling of 67698523107073 in words is "sixty-seven trillion, six hundred ninety-eight billion, five hundred twenty-three million, one hundred seven thousand, seventy-three".