67965131369 has 2 divisors, whose sum is σ = 67965131370. Its totient is φ = 67965131368.

The previous prime is 67965131359. The next prime is 67965131471. The reversal of 67965131369 is 96313156976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56805955600 + 11159175769 = 238340^2 + 105637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67965131369 is a prime.

It is a super-2 number, since 2×67965131369² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67965131359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33982565684 + 33982565685.

It is an arithmetic number, because the mean of its divisors is an integer number (33982565685).

Almost surely, 2^67965131369 is an apocalyptic number.

It is an amenable number.

67965131369 is a deficient number, since it is larger than the sum of its proper divisors (1).

67965131369 is an equidigital number, since it uses as much as digits as its factorization.

67965131369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5511240, while the sum is 56.

The spelling of 67965131369 in words is "sixty-seven billion, nine hundred sixty-five million, one hundred thirty-one thousand, three hundred sixty-nine".