68773100129 has 2 divisors, whose sum is σ = 68773100130. Its totient is φ = 68773100128.

The previous prime is 68773100089. The next prime is 68773100141. The reversal of 68773100129 is 92100137786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65259811600 + 3513288529 = 255460^2 + 59273^2 .

It is a cyclic number.

It is not a de Polignac number, because 68773100129 - 2¹² = 68773096033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68773100129.

It is not a weakly prime, because it can be changed into another prime (68773100159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34386550064 + 34386550065.

It is an arithmetic number, because the mean of its divisors is an integer number (34386550065).

Almost surely, 2^68773100129 is an apocalyptic number.

It is an amenable number.

68773100129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68773100129 is an equidigital number, since it uses as much as digits as its factorization.

68773100129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 68773100129 in words is "sixty-eight billion, seven hundred seventy-three million, one hundred thousand, one hundred twenty-nine".