421604643003 has 4 divisors (see below), whose sum is σ = 562139524008. Its totient is φ = 281069762000.

The previous prime is 421604643001. The next prime is 421604643011. The reversal of 421604643003 is 300346406124.

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

It is a cyclic number.

It is not a de Polignac number, because 421604643003 - 2¹ = 421604643001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421604643001) 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 in 3 ways as a sum of consecutive naturals, for example, 70267440498 + ... + 70267440503.

It is an arithmetic number, because the mean of its divisors is an integer number (140534881002).

Almost surely, 2^421604643003 is an apocalyptic number.

421604643003 is a deficient number, since it is larger than the sum of its proper divisors (140534881005).

421604643003 is a wasteful number, since it uses less digits than its factorization.

421604643003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140534881004.

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 421604643003 in words is "four hundred twenty-one billion, six hundred four million, six hundred forty-three thousand, three".