423480163681 has 4 divisors (see below), whose sum is σ = 423483766164. Its totient is φ = 423476561200.

The previous prime is 423480163663. The next prime is 423480163693. The reversal of 423480163681 is 186361084324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 248826380625 + 174653783056 = 498825^2 + 417916^2 .

It is a cyclic number.

It is not a de Polignac number, because 423480163681 - 2⁵ = 423480163649 is a prime.

It is a super-2 number, since 2×423480163681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423480167681) 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 in 3 ways as a sum of consecutive naturals, for example, 1618750 + ... + 1862071.

It is an arithmetic number, because the mean of its divisors is an integer number (105870941541).

Almost surely, 2^423480163681 is an apocalyptic number.

It is an amenable number.

423480163681 is a deficient number, since it is larger than the sum of its proper divisors (3602483).

423480163681 is a wasteful number, since it uses less digits than its factorization.

423480163681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602482.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 423480163681 in words is "four hundred twenty-three billion, four hundred eighty million, one hundred sixty-three thousand, six hundred eighty-one".