4431421257204 has 24 divisors (see below), whose sum is σ = 10340827977088. Its totient is φ = 1477019698560.

The previous prime is 4431421257089. The next prime is 4431421257217. The reversal of 4431421257204 is 4027521241344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14937052 + ... + 15230835.

Almost surely, 2^{4431421257204} is an apocalyptic number.

It is an amenable number.

4431421257204 is an abundant number, since it is smaller than the sum of its proper divisors (5909406719884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4431421257204 is a wasteful number, since it uses less digits than its factorization.

4431421257204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30180135 (or 30180133 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

Adding to 4431421257204 its reverse (4027521241344), we get a palindrome (8458942498548).

The spelling of 4431421257204 in words is "four trillion, four hundred thirty-one billion, four hundred twenty-one million, two hundred fifty-seven thousand, two hundred four".