68134777 has 2 divisors, whose sum is σ = 68134778. Its totient is φ = 68134776.

The previous prime is 68134771. The next prime is 68134811. The reversal of 68134777 is 77743186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44036496 + 24098281 = 6636^2 + 4909^2 .

It is a cyclic number.

It is not a de Polignac number, because 68134777 - 2¹⁹ = 67610489 is a prime.

It is not a weakly prime, because it can be changed into another prime (68134771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34067388 + 34067389.

It is an arithmetic number, because the mean of its divisors is an integer number (34067389).

Almost surely, 2^68134777 is an apocalyptic number.

It is an amenable number.

68134777 is a deficient number, since it is larger than the sum of its proper divisors (1).

68134777 is an equidigital number, since it uses as much as digits as its factorization.

68134777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 43.

The square root of 68134777 is about 8254.3792619433. The cubic root of 68134777 is about 408.4349955766.

The spelling of 68134777 in words is "sixty-eight million, one hundred thirty-four thousand, seven hundred seventy-seven".