84808012973 has 2 divisors, whose sum is σ = 84808012974. Its totient is φ = 84808012972.

The previous prime is 84808012889. The next prime is 84808012979. The reversal of 84808012973 is 37921080848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64875655849 + 19932357124 = 254707^2 + 141182^2 .

It is a cyclic number.

It is not a de Polignac number, because 84808012973 - 2⁸ = 84808012717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84808012979) 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, 42404006486 + 42404006487.

It is an arithmetic number, because the mean of its divisors is an integer number (42404006487).

Almost surely, 2^84808012973 is an apocalyptic number.

It is an amenable number.

84808012973 is a deficient number, since it is larger than the sum of its proper divisors (1).

84808012973 is an equidigital number, since it uses as much as digits as its factorization.

84808012973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 84808012973 in words is "eighty-four billion, eight hundred eight million, twelve thousand, nine hundred seventy-three".