67495618213 has 2 divisors, whose sum is σ = 67495618214. Its totient is φ = 67495618212.

The previous prime is 67495618207. The next prime is 67495618273. The reversal of 67495618213 is 31281659476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34305337089 + 33190281124 = 185217^2 + 182182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67495618213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67495618273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33747809106 + 33747809107.

It is an arithmetic number, because the mean of its divisors is an integer number (33747809107).

Almost surely, 2^67495618213 is an apocalyptic number.

It is an amenable number.

67495618213 is a deficient number, since it is larger than the sum of its proper divisors (1).

67495618213 is an equidigital number, since it uses as much as digits as its factorization.

67495618213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The spelling of 67495618213 in words is "sixty-seven billion, four hundred ninety-five million, six hundred eighteen thousand, two hundred thirteen".