4004421042624 has 56 divisors (see below), whose sum is σ = 10598333967120. Its totient is φ = 1334390851584.

The previous prime is 4004421042619. The next prime is 4004421042647. The reversal of 4004421042624 is 4262401244004.

It is a happy number.

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, 2633539 + ... + 3865794.

Almost surely, 2^{4004421042624} is an apocalyptic number.

It is an amenable number.

4004421042624 is an abundant number, since it is smaller than the sum of its proper divisors (6593912924496).

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

4004421042624 is a wasteful number, since it uses less digits than its factorization.

4004421042624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6502557 (or 6502547 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 4004421042624 its reverse (4262401244004), we get a palindrome (8266822286628).

The spelling of 4004421042624 in words is "four trillion, four billion, four hundred twenty-one million, forty-two thousand, six hundred twenty-four".