67489399073 has 2 divisors, whose sum is σ = 67489399074. Its totient is φ = 67489399072.

The previous prime is 67489399039. The next prime is 67489399099. The reversal of 67489399073 is 37099398476.

67489399073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51554881249 + 15934517824 = 227057^2 + 126232^2 .

It is a cyclic number.

It is not a de Polignac number, because 67489399073 - 2¹⁰ = 67489398049 is a prime.

It is not a weakly prime, because it can be changed into another prime (67489399013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33744699536 + 33744699537.

It is an arithmetic number, because the mean of its divisors is an integer number (33744699537).

Almost surely, 2^67489399073 is an apocalyptic number.

It is an amenable number.

67489399073 is a deficient number, since it is larger than the sum of its proper divisors (1).

67489399073 is an equidigital number, since it uses as much as digits as its factorization.

67489399073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61725888, while the sum is 65.

The spelling of 67489399073 in words is "sixty-seven billion, four hundred eighty-nine million, three hundred ninety-nine thousand, seventy-three".