67064243413 has 2 divisors, whose sum is σ = 67064243414. Its totient is φ = 67064243412.

The previous prime is 67064243401. The next prime is 67064243473. The reversal of 67064243413 is 31434246076.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50869644849 + 16194598564 = 225543^2 + 127258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67064243413 is a prime.

It is a super-2 number, since 2×67064243413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67064243473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33532121706 + 33532121707.

It is an arithmetic number, because the mean of its divisors is an integer number (33532121707).

Almost surely, 2^67064243413 is an apocalyptic number.

It is an amenable number.

67064243413 is a deficient number, since it is larger than the sum of its proper divisors (1).

67064243413 is an equidigital number, since it uses as much as digits as its factorization.

67064243413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 40.

Adding to 67064243413 its reverse (31434246076), we get a palindrome (98498489489).

The spelling of 67064243413 in words is "sixty-seven billion, sixty-four million, two hundred forty-three thousand, four hundred thirteen".