67208124409 has 2 divisors, whose sum is σ = 67208124410. Its totient is φ = 67208124408.

The previous prime is 67208124397. The next prime is 67208124413. The reversal of 67208124409 is 90442180276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65443872400 + 1764252009 = 255820^2 + 42003^2 .

It is a cyclic number.

It is not a de Polignac number, because 67208124409 - 2³¹ = 65060640761 is a prime.

It is not a weakly prime, because it can be changed into another prime (67208124439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33604062204 + 33604062205.

It is an arithmetic number, because the mean of its divisors is an integer number (33604062205).

Almost surely, 2^67208124409 is an apocalyptic number.

It is an amenable number.

67208124409 is a deficient number, since it is larger than the sum of its proper divisors (1).

67208124409 is an equidigital number, since it uses as much as digits as its factorization.

67208124409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 67208124409 in words is "sixty-seven billion, two hundred eight million, one hundred twenty-four thousand, four hundred nine".