84259167973 has 2 divisors, whose sum is σ = 84259167974. Its totient is φ = 84259167972.

The previous prime is 84259167961. The next prime is 84259167997. The reversal of 84259167973 is 37976195248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47603385124 + 36655782849 = 218182^2 + 191457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84259167973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84259167943) 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, 42129583986 + 42129583987.

It is an arithmetic number, because the mean of its divisors is an integer number (42129583987).

Almost surely, 2^84259167973 is an apocalyptic number.

It is an amenable number.

84259167973 is a deficient number, since it is larger than the sum of its proper divisors (1).

84259167973 is an equidigital number, since it uses as much as digits as its factorization.

84259167973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 61.

The spelling of 84259167973 in words is "eighty-four billion, two hundred fifty-nine million, one hundred sixty-seven thousand, nine hundred seventy-three".