67347512213 has 2 divisors, whose sum is σ = 67347512214. Its totient is φ = 67347512212.

The previous prime is 67347512131. The next prime is 67347512237. The reversal of 67347512213 is 31221574376.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39677851249 + 27669660964 = 199193^2 + 166342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67347512213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67347512413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33673756106 + 33673756107.

It is an arithmetic number, because the mean of its divisors is an integer number (33673756107).

Almost surely, 2^67347512213 is an apocalyptic number.

It is an amenable number.

67347512213 is a deficient number, since it is larger than the sum of its proper divisors (1).

67347512213 is an equidigital number, since it uses as much as digits as its factorization.

67347512213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The spelling of 67347512213 in words is "sixty-seven billion, three hundred forty-seven million, five hundred twelve thousand, two hundred thirteen".