82442647073 has 2 divisors, whose sum is σ = 82442647074. Its totient is φ = 82442647072.

The previous prime is 82442647051. The next prime is 82442647097. The reversal of 82442647073 is 37074624428.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50475710224 + 31966936849 = 224668^2 + 178793^2 .

It is a cyclic number.

It is not a de Polignac number, because 82442647073 - 2⁸ = 82442646817 is a prime.

It is not a weakly prime, because it can be changed into another prime (82442647003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41221323536 + 41221323537.

It is an arithmetic number, because the mean of its divisors is an integer number (41221323537).

Almost surely, 2^82442647073 is an apocalyptic number.

It is an amenable number.

82442647073 is a deficient number, since it is larger than the sum of its proper divisors (1).

82442647073 is an equidigital number, since it uses as much as digits as its factorization.

82442647073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 47.

The spelling of 82442647073 in words is "eighty-two billion, four hundred forty-two million, six hundred forty-seven thousand, seventy-three".