82581516923 has 2 divisors, whose sum is σ = 82581516924. Its totient is φ = 82581516922.

The previous prime is 82581516887. The next prime is 82581516959. The reversal of 82581516923 is 32961518528.

It is a balanced prime because it is at equal distance from previous prime (82581516887) and next prime (82581516959).

It is a cyclic number.

It is not a de Polignac number, because 82581516923 - 2¹⁶ = 82581451387 is a prime.

It is not a weakly prime, because it can be changed into another prime (82581510923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41290758461 + 41290758462.

It is an arithmetic number, because the mean of its divisors is an integer number (41290758462).

Almost surely, 2^82581516923 is an apocalyptic number.

82581516923 is a deficient number, since it is larger than the sum of its proper divisors (1).

82581516923 is an equidigital number, since it uses as much as digits as its factorization.

82581516923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 50.

The spelling of 82581516923 in words is "eighty-two billion, five hundred eighty-one million, five hundred sixteen thousand, nine hundred twenty-three".