43238543967 has 24 divisors (see below), whose sum is σ = 63950335488. Its totient is φ = 28143738000.

The previous prime is 43238543947. The next prime is 43238543981. The reversal of 43238543967 is 76934583234.

43238543967 is a `hidden beast` number, since 4 + 3 + 2 + 3 + 8 + 543 + 96 + 7 = 666.

It is not a de Polignac number, because 43238543967 - 2¹⁹ = 43238019679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43238543947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262659 + ... + 394292.

It is an arithmetic number, because the mean of its divisors is an integer number (2664597312).

Almost surely, 2^43238543967 is an apocalyptic number.

43238543967 is a deficient number, since it is larger than the sum of its proper divisors (20711791521).

43238543967 is a wasteful number, since it uses less digits than its factorization.

43238543967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657131 (or 657128 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 43238543967 in words is "forty-three billion, two hundred thirty-eight million, five hundred forty-three thousand, nine hundred sixty-seven".