84982160777 has 2 divisors, whose sum is σ = 84982160778. Its totient is φ = 84982160776.

The previous prime is 84982160743. The next prime is 84982160779. The reversal of 84982160777 is 77706128948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82385646841 + 2596513936 = 287029^2 + 50956^2 .

It is a cyclic number.

It is not a de Polignac number, because 84982160777 - 2²² = 84977966473 is a prime.

Together with 84982160779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84982160779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42491080388 + 42491080389.

It is an arithmetic number, because the mean of its divisors is an integer number (42491080389).

Almost surely, 2^84982160777 is an apocalyptic number.

It is an amenable number.

84982160777 is a deficient number, since it is larger than the sum of its proper divisors (1).

84982160777 is an equidigital number, since it uses as much as digits as its factorization.

84982160777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9483264, while the sum is 59.

The spelling of 84982160777 in words is "eighty-four billion, nine hundred eighty-two million, one hundred sixty thousand, seven hundred seventy-seven".