67243025117 has 2 divisors, whose sum is σ = 67243025118. Its totient is φ = 67243025116.

The previous prime is 67243025081. The next prime is 67243025123. The reversal of 67243025117 is 71152034276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66334062916 + 908962201 = 257554^2 + 30149^2 .

It is a cyclic number.

It is not a de Polignac number, because 67243025117 - 2²⁴ = 67226247901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67243025167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33621512558 + 33621512559.

It is an arithmetic number, because the mean of its divisors is an integer number (33621512559).

Almost surely, 2^67243025117 is an apocalyptic number.

It is an amenable number.

67243025117 is a deficient number, since it is larger than the sum of its proper divisors (1).

67243025117 is an equidigital number, since it uses as much as digits as its factorization.

67243025117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 67243025117 in words is "sixty-seven billion, two hundred forty-three million, twenty-five thousand, one hundred seventeen".