67912377329 has 2 divisors, whose sum is σ = 67912377330. Its totient is φ = 67912377328.

The previous prime is 67912377289. The next prime is 67912377349. The reversal of 67912377329 is 92377321976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63033634225 + 4878743104 = 251065^2 + 69848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67912377329 is a prime.

It is a super-2 number, since 2×67912377329² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67912377349) 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, 33956188664 + 33956188665.

It is an arithmetic number, because the mean of its divisors is an integer number (33956188665).

Almost surely, 2^67912377329 is an apocalyptic number.

It is an amenable number.

67912377329 is a deficient number, since it is larger than the sum of its proper divisors (1).

67912377329 is an equidigital number, since it uses as much as digits as its factorization.

67912377329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6001128, while the sum is 56.

The spelling of 67912377329 in words is "sixty-seven billion, nine hundred twelve million, three hundred seventy-seven thousand, three hundred twenty-nine".