82444474784773 has 2 divisors, whose sum is σ = 82444474784774. Its totient is φ = 82444474784772.

The previous prime is 82444474784747. The next prime is 82444474784803. The reversal of 82444474784773 is 37748747444428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46050366025764 + 36394108759009 = 6786042^2 + 6032753^2 .

It is a cyclic number.

It is not a de Polignac number, because 82444474784773 - 2⁴⁵ = 47260102695941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82444474784696 and 82444474784705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82444474184773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41222237392386 + 41222237392387.

It is an arithmetic number, because the mean of its divisors is an integer number (41222237392387).

Almost surely, 2^{82444474784773} is an apocalyptic number.

It is an amenable number.

82444474784773 is a deficient number, since it is larger than the sum of its proper divisors (1).

82444474784773 is an equidigital number, since it uses as much as digits as its factorization.

82444474784773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3776446464, while the sum is 73.

The spelling of 82444474784773 in words is "eighty-two trillion, four hundred forty-four billion, four hundred seventy-four million, seven hundred eighty-four thousand, seven hundred seventy-three".