43431866343 has 12 divisors (see below), whose sum is σ = 62761678408. Its totient is φ = 28942226640.

The previous prime is 43431866341. The next prime is 43431866363. The reversal of 43431866343 is 34366813434.

43431866343 is a `hidden beast` number, since 4 + 3 + 4 + 3 + 1 + 8 + 6 + 634 + 3 = 666.

It is not a de Polignac number, because 43431866343 - 2¹ = 43431866341 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 (43431866341) 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 11 ways as a sum of consecutive naturals, for example, 1006948 + ... + 1049193.

Almost surely, 2^43431866343 is an apocalyptic number.

43431866343 is a deficient number, since it is larger than the sum of its proper divisors (19329812065).

43431866343 is a wasteful number, since it uses less digits than its factorization.

43431866343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058494 (or 2058491 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The spelling of 43431866343 in words is "forty-three billion, four hundred thirty-one million, eight hundred sixty-six thousand, three hundred forty-three".