43485538543 has 2 divisors, whose sum is σ = 43485538544. Its totient is φ = 43485538542.

The previous prime is 43485538511. The next prime is 43485538597. The reversal of 43485538543 is 34583558434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43485538543 - 2⁵ = 43485538511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43485538643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21742769271 + 21742769272.

It is an arithmetic number, because the mean of its divisors is an integer number (21742769272).

Almost surely, 2^43485538543 is an apocalyptic number.

43485538543 is a deficient number, since it is larger than the sum of its proper divisors (1).

43485538543 is an equidigital number, since it uses as much as digits as its factorization.

43485538543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824000, while the sum is 52.

The spelling of 43485538543 in words is "forty-three billion, four hundred eighty-five million, five hundred thirty-eight thousand, five hundred forty-three".