84434388058177 has 2 divisors, whose sum is σ = 84434388058178. Its totient is φ = 84434388058176.

The previous prime is 84434388058127. The next prime is 84434388058277. The reversal of 84434388058177 is 77185088343448.

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., 81720316325041 + 2714071733136 = 9039929^2 + 1647444^2 .

It is a cyclic number.

It is not a de Polignac number, because 84434388058177 - 2¹¹ = 84434388056129 is a prime.

It is not a weakly prime, because it can be changed into another prime (84434388058127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42217194029088 + 42217194029089.

It is an arithmetic number, because the mean of its divisors is an integer number (42217194029089).

Almost surely, 2^{84434388058177} is an apocalyptic number.

It is an amenable number.

84434388058177 is a deficient number, since it is larger than the sum of its proper divisors (1).

84434388058177 is an equidigital number, since it uses as much as digits as its factorization.

84434388058177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 578027520, while the sum is 70.

The spelling of 84434388058177 in words is "eighty-four trillion, four hundred thirty-four billion, three hundred eighty-eight million, fifty-eight thousand, one hundred seventy-seven".