421604643002 has 8 divisors (see below), whose sum is σ = 654214101300. Its totient is φ = 203533275904.

The previous prime is 421604643001. The next prime is 421604643011. The reversal of 421604643002 is 200346406124.

It can be written as a sum of positive squares in 2 ways, for example, as 419319707401 + 2284935601 = 647549^2 + 47801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 421604643002.

It is not an unprimeable number, because it can be changed into a prime (421604643001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634522727 + ... + 3634522842.

Almost surely, 2^421604643002 is an apocalyptic number.

421604643002 is a deficient number, since it is larger than the sum of its proper divisors (232609458298).

421604643002 is a wasteful number, since it uses less digits than its factorization.

421604643002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7269045600.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 421604643002 in words is "four hundred twenty-one billion, six hundred four million, six hundred forty-three thousand, two".