67719849458413 has 2 divisors, whose sum is σ = 67719849458414. Its totient is φ = 67719849458412.

The previous prime is 67719849458333. The next prime is 67719849458431. The reversal of 67719849458413 is 31485494891776.

Together with next prime (67719849458431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64654818435684 + 3065031022729 = 8040822^2 + 1750723^2 .

It is a cyclic number.

It is not a de Polignac number, because 67719849458413 - 2¹⁷ = 67719849327341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67719849458413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67719849458113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33859924729206 + 33859924729207.

It is an arithmetic number, because the mean of its divisors is an integer number (33859924729207).

Almost surely, 2^{67719849458413} is an apocalyptic number.

It is an amenable number.

67719849458413 is a deficient number, since it is larger than the sum of its proper divisors (1).

67719849458413 is an equidigital number, since it uses as much as digits as its factorization.

67719849458413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1463132160, while the sum is 76.

The spelling of 67719849458413 in words is "sixty-seven trillion, seven hundred nineteen billion, eight hundred forty-nine million, four hundred fifty-eight thousand, four hundred thirteen".