423216212344 has 8 divisors (see below), whose sum is σ = 793530398160. Its totient is φ = 211608106168.

The previous prime is 423216212269. The next prime is 423216212347. The reversal of 423216212344 is 443212612324.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×423216212344² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423216212347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26451013264 + ... + 26451013279.

It is an arithmetic number, because the mean of its divisors is an integer number (99191299770).

Almost surely, 2^423216212344 is an apocalyptic number.

It is an amenable number.

423216212344 is a deficient number, since it is larger than the sum of its proper divisors (370314185816).

423216212344 is a wasteful number, since it uses less digits than its factorization.

423216212344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52902026549 (or 52902026545 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

Adding to 423216212344 its reverse (443212612324), we get a palindrome (866428824668).

The spelling of 423216212344 in words is "four hundred twenty-three billion, two hundred sixteen million, two hundred twelve thousand, three hundred forty-four".