4431134322145 has 64 divisors (see below), whose sum is σ = 5591225807424. Its totient is φ = 3367572848640.

The previous prime is 4431134322143. The next prime is 4431134322169. The reversal of 4431134322145 is 5412234311344.

It can be written as a sum of positive squares in 32 ways, for example, as 339022049536 + 4092112272609 = 582256^2 + 2022897^2 .

It is not a de Polignac number, because 4431134322145 - 2¹ = 4431134322143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4431134322143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3354378085 + ... + 3354379405.

It is an arithmetic number, because the mean of its divisors is an integer number (87362903241).

Almost surely, 2^{4431134322145} is an apocalyptic number.

It is an amenable number.

4431134322145 is a deficient number, since it is larger than the sum of its proper divisors (1160091485279).

4431134322145 is a wasteful number, since it uses less digits than its factorization.

4431134322145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822.

The product of its digits is 138240, while the sum is 37.

Adding to 4431134322145 its reverse (5412234311344), we get a palindrome (9843368633489).

The spelling of 4431134322145 in words is "four trillion, four hundred thirty-one billion, one hundred thirty-four million, three hundred twenty-two thousand, one hundred forty-five".