67771578249983 has 2 divisors, whose sum is σ = 67771578249984. Its totient is φ = 67771578249982.

The previous prime is 67771578249923. The next prime is 67771578250009. The reversal of 67771578249983 is 38994287517776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67771578249983 - 2⁶ = 67771578249919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67771578249913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33885789124991 + 33885789124992.

It is an arithmetic number, because the mean of its divisors is an integer number (33885789124992).

Almost surely, 2^{67771578249983} is an apocalyptic number.

67771578249983 is a deficient number, since it is larger than the sum of its proper divisors (1).

67771578249983 is an equidigital number, since it uses as much as digits as its factorization.

67771578249983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8961684480, while the sum is 83.

The spelling of 67771578249983 in words is "sixty-seven trillion, seven hundred seventy-one billion, five hundred seventy-eight million, two hundred forty-nine thousand, nine hundred eighty-three".