67585858849 has 2 divisors, whose sum is σ = 67585858850. Its totient is φ = 67585858848.

The previous prime is 67585858843. The next prime is 67585858871. The reversal of 67585858849 is 94885858576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63306082449 + 4279776400 = 251607^2 + 65420^2 .

It is a cyclic number.

It is not a de Polignac number, because 67585858849 - 2³ = 67585858841 is a prime.

It is not a weakly prime, because it can be changed into another prime (67585858841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33792929424 + 33792929425.

It is an arithmetic number, because the mean of its divisors is an integer number (33792929425).

Almost surely, 2^67585858849 is an apocalyptic number.

It is an amenable number.

67585858849 is a deficient number, since it is larger than the sum of its proper divisors (1).

67585858849 is an equidigital number, since it uses as much as digits as its factorization.

67585858849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144000, while the sum is 73.

The spelling of 67585858849 in words is "sixty-seven billion, five hundred eighty-five million, eight hundred fifty-eight thousand, eight hundred forty-nine".