604561431221 has 32 divisors (see below), whose sum is σ = 687713328000. Its totient is φ = 526710862080.

The previous prime is 604561431211. The next prime is 604561431289. The reversal of 604561431221 is 122134165406.

604561431221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 604561431221 - 2⁶ = 604561431157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604561431211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5344355 + ... + 5456303.

It is an arithmetic number, because the mean of its divisors is an integer number (21491041500).

Almost surely, 2^604561431221 is an apocalyptic number.

It is an amenable number.

604561431221 is a deficient number, since it is larger than the sum of its proper divisors (83151896779).

604561431221 is a wasteful number, since it uses less digits than its factorization.

604561431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112229.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 604561431221 its reverse (122134165406), we get a palindrome (726695596627).

The spelling of 604561431221 in words is "six hundred four billion, five hundred sixty-one million, four hundred thirty-one thousand, two hundred twenty-one".