423945559528 has 16 divisors (see below), whose sum is σ = 795517505280. Its totient is φ = 211807558128.

The previous prime is 423945559523. The next prime is 423945559561. The reversal of 423945559528 is 825955549324.

It is not an unprimeable number, because it can be changed into a prime (423945559523) 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 in 3 ways as a sum of consecutive naturals, for example, 20641800 + ... + 20662327.

It is an arithmetic number, because the mean of its divisors is an integer number (49719844080).

Almost surely, 2^423945559528 is an apocalyptic number.

It is an amenable number.

423945559528 is a deficient number, since it is larger than the sum of its proper divisors (371571945752).

423945559528 is a wasteful number, since it uses less digits than its factorization.

423945559528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41305416 (or 41305412 counting only the distinct ones).

The product of its digits is 77760000, while the sum is 61.

The spelling of 423945559528 in words is "four hundred twenty-three billion, nine hundred forty-five million, five hundred fifty-nine thousand, five hundred twenty-eight".