82308756991 has 2 divisors, whose sum is σ = 82308756992. Its totient is φ = 82308756990.

The previous prime is 82308756989. The next prime is 82308757001. The reversal of 82308756991 is 19965780328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82308756991 - 2¹ = 82308756989 is a prime.

Together with 82308756989, 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 (82308750991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41154378495 + 41154378496.

It is an arithmetic number, because the mean of its divisors is an integer number (41154378496).

Almost surely, 2^82308756991 is an apocalyptic number.

82308756991 is a deficient number, since it is larger than the sum of its proper divisors (1).

82308756991 is an equidigital number, since it uses as much as digits as its factorization.

82308756991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 82308756991 in words is "eighty-two billion, three hundred eight million, seven hundred fifty-six thousand, nine hundred ninety-one".