84565816327 has 2 divisors, whose sum is σ = 84565816328. Its totient is φ = 84565816326.

The previous prime is 84565816319. The next prime is 84565816451. The reversal of 84565816327 is 72361856548.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84565816327 - 2³ = 84565816319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84565856327) 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, 42282908163 + 42282908164.

It is an arithmetic number, because the mean of its divisors is an integer number (42282908164).

Almost surely, 2^84565816327 is an apocalyptic number.

84565816327 is a deficient number, since it is larger than the sum of its proper divisors (1).

84565816327 is an equidigital number, since it uses as much as digits as its factorization.

84565816327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 55.

The spelling of 84565816327 in words is "eighty-four billion, five hundred sixty-five million, eight hundred sixteen thousand, three hundred twenty-seven".