81422322322418 has 32 divisors (see below), whose sum is σ = 152672085826560. Its totient is φ = 31639280898960.

The previous prime is 81422322322403. The next prime is 81422322322433.

81422322322418 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (81422322322403) and next prime (81422322322433).

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 697456646 + ... + 697573377.

It is an arithmetic number, because the mean of its divisors is an integer number (4771002682080).

Almost surely, 2^{81422322322418} is an apocalyptic number.

81422322322418 is a deficient number, since it is larger than the sum of its proper divisors (71249763504142).

81422322322418 is a wasteful number, since it uses less digits than its factorization.

81422322322418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395030422.

The product of its digits is 589824, while the sum is 44.

The spelling of 81422322322418 in words is "eighty-one trillion, four hundred twenty-two billion, three hundred twenty-two million, three hundred twenty-two thousand, four hundred eighteen".