82802939897 has 2 divisors, whose sum is σ = 82802939898. Its totient is φ = 82802939896.

The previous prime is 82802939893. The next prime is 82802939899. The reversal of 82802939897 is 79893920828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82661425081 + 141514816 = 287509^2 + 11896^2 .

It is a cyclic number.

It is not a de Polignac number, because 82802939897 - 2² = 82802939893 is a prime.

Together with 82802939899, 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 (82802939893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41401469948 + 41401469949.

It is an arithmetic number, because the mean of its divisors is an integer number (41401469949).

Almost surely, 2^82802939897 is an apocalyptic number.

It is an amenable number.

82802939897 is a deficient number, since it is larger than the sum of its proper divisors (1).

82802939897 is an equidigital number, since it uses as much as digits as its factorization.

82802939897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 65.

The spelling of 82802939897 in words is "eighty-two billion, eight hundred two million, nine hundred thirty-nine thousand, eight hundred ninety-seven".