84116967689 has 2 divisors, whose sum is σ = 84116967690. Its totient is φ = 84116967688.

The previous prime is 84116967653. The next prime is 84116967707. The reversal of 84116967689 is 98676961148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84022877689 + 94090000 = 289867^2 + 9700^2 .

It is a cyclic number.

It is not a de Polignac number, because 84116967689 - 2¹⁶ = 84116902153 is a prime.

It is not a weakly prime, because it can be changed into another prime (84116967089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42058483844 + 42058483845.

It is an arithmetic number, because the mean of its divisors is an integer number (42058483845).

Almost surely, 2^84116967689 is an apocalyptic number.

It is an amenable number.

84116967689 is a deficient number, since it is larger than the sum of its proper divisors (1).

84116967689 is an equidigital number, since it uses as much as digits as its factorization.

84116967689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 65.

The spelling of 84116967689 in words is "eighty-four billion, one hundred sixteen million, nine hundred sixty-seven thousand, six hundred eighty-nine".