84689873273 has 2 divisors, whose sum is σ = 84689873274. Its totient is φ = 84689873272.

The previous prime is 84689873263. The next prime is 84689873293. The reversal of 84689873273 is 37237898648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76955198464 + 7734674809 = 277408^2 + 87947^2 .

It is a cyclic number.

It is not a de Polignac number, because 84689873273 - 2¹² = 84689869177 is a prime.

It is not a weakly prime, because it can be changed into another prime (84689873243) 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, 42344936636 + 42344936637.

It is an arithmetic number, because the mean of its divisors is an integer number (42344936637).

Almost surely, 2^84689873273 is an apocalyptic number.

It is an amenable number.

84689873273 is a deficient number, since it is larger than the sum of its proper divisors (1).

84689873273 is an equidigital number, since it uses as much as digits as its factorization.

84689873273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97542144, while the sum is 65.

The spelling of 84689873273 in words is "eighty-four billion, six hundred eighty-nine million, eight hundred seventy-three thousand, two hundred seventy-three".