67312545152173 has 2 divisors, whose sum is σ = 67312545152174. Its totient is φ = 67312545152172.

The previous prime is 67312545152131. The next prime is 67312545152189. The reversal of 67312545152173 is 37125154521376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43025754597604 + 24286790554569 = 6559402^2 + 4928163^2 .

It is a cyclic number.

It is not a de Polignac number, because 67312545152173 - 2³³ = 67303955217581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67312545152173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67312545150173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33656272576086 + 33656272576087.

It is an arithmetic number, because the mean of its divisors is an integer number (33656272576087).

Almost surely, 2^{67312545152173} is an apocalyptic number.

It is an amenable number.

67312545152173 is a deficient number, since it is larger than the sum of its proper divisors (1).

67312545152173 is an equidigital number, since it uses as much as digits as its factorization.

67312545152173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292000, while the sum is 52.

The spelling of 67312545152173 in words is "sixty-seven trillion, three hundred twelve billion, five hundred forty-five million, one hundred fifty-two thousand, one hundred seventy-three".