4013445144321 has 24 divisors (see below), whose sum is σ = 5999075208360. Its totient is φ = 2582516966400.

The previous prime is 4013445144301. The next prime is 4013445144343. The reversal of 4013445144321 is 1234415443104.

It is a happy number.

4013445144321 is a `hidden beast` number, since 4 + 0 + 134 + 4 + 514 + 4 + 3 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2595678654321 + 1417766490000 = 1611111^2 + 1190700^2 .

It is not a de Polignac number, because 4013445144321 - 2⁶ = 4013445144257 is a prime.

It is a super-2 number, since 2×4013445144321² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4013445144301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1734610 + ... + 3322011.

It is an arithmetic number, because the mean of its divisors is an integer number (249961467015).

Almost surely, 2^{4013445144321} is an apocalyptic number.

It is an amenable number.

4013445144321 is a deficient number, since it is larger than the sum of its proper divisors (1985630064039).

4013445144321 is a wasteful number, since it uses less digits than its factorization.

4013445144321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059697 (or 5059694 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 4013445144321 in words is "four trillion, thirteen billion, four hundred forty-five million, one hundred forty-four thousand, three hundred twenty-one".