82047820667 has 2 divisors, whose sum is σ = 82047820668. Its totient is φ = 82047820666.

The previous prime is 82047820661. The next prime is 82047820693. The reversal of 82047820667 is 76602874028.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82047820667 - 2⁴ = 82047820651 is a prime.

It is not a weakly prime, because it can be changed into another prime (82047820661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41023910333 + 41023910334.

It is an arithmetic number, because the mean of its divisors is an integer number (41023910334).

Almost surely, 2^82047820667 is an apocalyptic number.

82047820667 is a deficient number, since it is larger than the sum of its proper divisors (1).

82047820667 is an equidigital number, since it uses as much as digits as its factorization.

82047820667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 82047820667 in words is "eighty-two billion, forty-seven million, eight hundred twenty thousand, six hundred sixty-seven".