4221644348604 has 12 divisors (see below), whose sum is σ = 9850503480104. Its totient is φ = 1407214782864.

The previous prime is 4221644348477. The next prime is 4221644348611. The reversal of 4221644348604 is 4068434461224.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4221644348604² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175901847847 + ... + 175901847870.

Almost surely, 2^{4221644348604} is an apocalyptic number.

It is an amenable number.

4221644348604 is an abundant number, since it is smaller than the sum of its proper divisors (5628859131500).

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

4221644348604 is a wasteful number, since it uses less digits than its factorization.

4221644348604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351803695724 (or 351803695722 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 48.

The spelling of 4221644348604 in words is "four trillion, two hundred twenty-one billion, six hundred forty-four million, three hundred forty-eight thousand, six hundred four".