82549766293 has 2 divisors, whose sum is σ = 82549766294. Its totient is φ = 82549766292.

The previous prime is 82549766291. The next prime is 82549766311. The reversal of 82549766293 is 39266794528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57177417924 + 25372348369 = 239118^2 + 159287^2 .

It is a cyclic number.

It is not a de Polignac number, because 82549766293 - 2¹ = 82549766291 is a prime.

Together with 82549766291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82549766291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41274883146 + 41274883147.

It is an arithmetic number, because the mean of its divisors is an integer number (41274883147).

Almost surely, 2^82549766293 is an apocalyptic number.

It is an amenable number.

82549766293 is a deficient number, since it is larger than the sum of its proper divisors (1).

82549766293 is an equidigital number, since it uses as much as digits as its factorization.

82549766293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 61.

The spelling of 82549766293 in words is "eighty-two billion, five hundred forty-nine million, seven hundred sixty-six thousand, two hundred ninety-three".