82864869811 has 2 divisors, whose sum is σ = 82864869812. Its totient is φ = 82864869810.

The previous prime is 82864869781. The next prime is 82864869847. The reversal of 82864869811 is 11896846828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82864869811 - 2¹⁹ = 82864345523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82864869811.

It is not a weakly prime, because it can be changed into another prime (82864869511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41432434905 + 41432434906.

It is an arithmetic number, because the mean of its divisors is an integer number (41432434906).

Almost surely, 2^82864869811 is an apocalyptic number.

82864869811 is a deficient number, since it is larger than the sum of its proper divisors (1).

82864869811 is an equidigital number, since it uses as much as digits as its factorization.

82864869811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10616832, while the sum is 61.

The spelling of 82864869811 in words is "eighty-two billion, eight hundred sixty-four million, eight hundred sixty-nine thousand, eight hundred eleven".