4381144013 has 12 divisors (see below), whose sum is σ = 4699691388. Its totient is φ = 4082495040.

The previous prime is 4381143973. The next prime is 4381144039. The reversal of 4381144013 is 3104411834.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2075895844 + 2305248169 = 45562^2 + 48013^2 .

It is not a de Polignac number, because 4381144013 - 2²⁰ = 4380095437 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 (4381144513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77456 + ... + 121497.

It is an arithmetic number, because the mean of its divisors is an integer number (391640949).

Almost surely, 2^4381144013 is an apocalyptic number.

It is an amenable number.

4381144013 is a deficient number, since it is larger than the sum of its proper divisors (318547375).

4381144013 is a wasteful number, since it uses less digits than its factorization.

4381144013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199052 (or 199033 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 4381144013 is about 66190.2108547782. The cubic root of 4381144013 is about 1636.2984150308.

Adding to 4381144013 its reverse (3104411834), we get a palindrome (7485555847).

The spelling of 4381144013 in words is "four billion, three hundred eighty-one million, one hundred forty-four thousand, thirteen".