423668044823 has 2 divisors, whose sum is σ = 423668044824. Its totient is φ = 423668044822.

The previous prime is 423668044799. The next prime is 423668044841. The reversal of 423668044823 is 328440866324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423668044823 - 2²⁶ = 423600935959 is a prime.

It is a super-2 number, since 2×423668044823² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423668064823) 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, 211834022411 + 211834022412.

It is an arithmetic number, because the mean of its divisors is an integer number (211834022412).

Almost surely, 2^423668044823 is an apocalyptic number.

423668044823 is a deficient number, since it is larger than the sum of its proper divisors (1).

423668044823 is an equidigital number, since it uses as much as digits as its factorization.

423668044823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5308416, while the sum is 50.

The spelling of 423668044823 in words is "four hundred twenty-three billion, six hundred sixty-eight million, forty-four thousand, eight hundred twenty-three".