82648084691 has 2 divisors, whose sum is σ = 82648084692. Its totient is φ = 82648084690.

The previous prime is 82648084583. The next prime is 82648084693. The reversal of 82648084691 is 19648084628.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82648084691 is a prime.

Together with 82648084693, 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 (82648084693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41324042345 + 41324042346.

It is an arithmetic number, because the mean of its divisors is an integer number (41324042346).

Almost surely, 2^82648084691 is an apocalyptic number.

82648084691 is a deficient number, since it is larger than the sum of its proper divisors (1).

82648084691 is an equidigital number, since it uses as much as digits as its factorization.

82648084691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 82648084691 in words is "eighty-two billion, six hundred forty-eight million, eighty-four thousand, six hundred ninety-one".