43431323350544 has 20 divisors (see below), whose sum is σ = 85015696097724. Its totient is φ = 21491788873728.

The previous prime is 43431323350501. The next prime is 43431323350549. The reversal of 43431323350544 is 44505332313434.

It can be written as a sum of positive squares in 2 ways, for example, as 27957233251600 + 15474090098944 = 5287460^2 + 3933712^2 .

It is a super-3 number, since 3×43431323350544³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43431323350495 and 43431323350504.

It is not an unprimeable number, because it can be changed into a prime (43431323350549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13992048497 + ... + 13992051600.

Almost surely, 2^{43431323350544} is an apocalyptic number.

It is an amenable number.

43431323350544 is a deficient number, since it is larger than the sum of its proper divisors (41584372747180).

43431323350544 is a wasteful number, since it uses less digits than its factorization.

43431323350544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27984100202 (or 27984100196 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 44.

Adding to 43431323350544 its reverse (44505332313434), we get a palindrome (87936655663978).

The spelling of 43431323350544 in words is "forty-three trillion, four hundred thirty-one billion, three hundred twenty-three million, three hundred fifty thousand, five hundred forty-four".