43543085397 has 16 divisors (see below), whose sum is σ = 67603282560. Its totient is φ = 24412295232.

The previous prime is 43543085389. The next prime is 43543085437. The reversal of 43543085397 is 79358034534.

It is not a de Polignac number, because 43543085397 - 2³ = 43543085389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43543085317) 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 15 ways as a sum of consecutive naturals, for example, 19560022 + ... + 19562247.

It is an arithmetic number, because the mean of its divisors is an integer number (4225205160).

Almost surely, 2^43543085397 is an apocalyptic number.

It is an amenable number.

43543085397 is a deficient number, since it is larger than the sum of its proper divisors (24060197163).

43543085397 is a wasteful number, since it uses less digits than its factorization.

43543085397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39122332.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 43543085397 in words is "forty-three billion, five hundred forty-three million, eighty-five thousand, three hundred ninety-seven".