68635116029 has 2 divisors, whose sum is σ = 68635116030. Its totient is φ = 68635116028.

The previous prime is 68635116001. The next prime is 68635116083. The reversal of 68635116029 is 92061153686.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36749656804 + 31885459225 = 191702^2 + 178565^2 .

It is a cyclic number.

It is not a de Polignac number, because 68635116029 - 2¹⁶ = 68635050493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68635110029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34317558014 + 34317558015.

It is an arithmetic number, because the mean of its divisors is an integer number (34317558015).

Almost surely, 2^68635116029 is an apocalyptic number.

It is an amenable number.

68635116029 is a deficient number, since it is larger than the sum of its proper divisors (1).

68635116029 is an equidigital number, since it uses as much as digits as its factorization.

68635116029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 68635116029 in words is "sixty-eight billion, six hundred thirty-five million, one hundred sixteen thousand, twenty-nine".