84875328871 has 2 divisors, whose sum is σ = 84875328872. Its totient is φ = 84875328870.

The previous prime is 84875328869. The next prime is 84875328899. The reversal of 84875328871 is 17882357848.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84875328871 - 2¹ = 84875328869 is a prime.

It is a super-2 number, since 2×84875328871² (a number of 23 digits) contains 22 as substring.

Together with 84875328869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84875328841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42437664435 + 42437664436.

It is an arithmetic number, because the mean of its divisors is an integer number (42437664436).

Almost surely, 2^84875328871 is an apocalyptic number.

84875328871 is a deficient number, since it is larger than the sum of its proper divisors (1).

84875328871 is an equidigital number, since it uses as much as digits as its factorization.

84875328871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24084480, while the sum is 61.

The spelling of 84875328871 in words is "eighty-four billion, eight hundred seventy-five million, three hundred twenty-eight thousand, eight hundred seventy-one".