84315358129 has 2 divisors, whose sum is σ = 84315358130. Its totient is φ = 84315358128.

The previous prime is 84315358123. The next prime is 84315358157. The reversal of 84315358129 is 92185351348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58515610000 + 25799748129 = 241900^2 + 160623^2 .

It is a cyclic number.

It is not a de Polignac number, because 84315358129 - 2³⁵ = 49955619761 is a prime.

It is not a weakly prime, because it can be changed into another prime (84315358123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42157679064 + 42157679065.

It is an arithmetic number, because the mean of its divisors is an integer number (42157679065).

Almost surely, 2^84315358129 is an apocalyptic number.

It is an amenable number.

84315358129 is a deficient number, since it is larger than the sum of its proper divisors (1).

84315358129 is an equidigital number, since it uses as much as digits as its factorization.

84315358129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 49.

The spelling of 84315358129 in words is "eighty-four billion, three hundred fifteen million, three hundred fifty-eight thousand, one hundred twenty-nine".