67985507741 has 2 divisors, whose sum is σ = 67985507742. Its totient is φ = 67985507740.

The previous prime is 67985507729. The next prime is 67985507771. The reversal of 67985507741 is 14770558976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66662076100 + 1323431641 = 258190^2 + 36379^2 .

It is a cyclic number.

It is not a de Polignac number, because 67985507741 - 2⁶ = 67985507677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67985507771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33992753870 + 33992753871.

It is an arithmetic number, because the mean of its divisors is an integer number (33992753871).

Almost surely, 2^67985507741 is an apocalyptic number.

It is an amenable number.

67985507741 is a deficient number, since it is larger than the sum of its proper divisors (1).

67985507741 is an equidigital number, since it uses as much as digits as its factorization.

67985507741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14817600, while the sum is 59.

The spelling of 67985507741 in words is "sixty-seven billion, nine hundred eighty-five million, five hundred seven thousand, seven hundred forty-one".