43504040452543 has 32 divisors (see below), whose sum is σ = 49149856512000. Its totient is φ = 38166115595520.

The previous prime is 43504040452531. The next prime is 43504040452583. The reversal of 43504040452543 is 34525404040534.

It is not a de Polignac number, because 43504040452543 - 2²⁹ = 43503503581631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43504040452543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43504040452583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15201853 + ... + 17835481.

It is an arithmetic number, because the mean of its divisors is an integer number (1535933016000).

Almost surely, 2^{43504040452543} is an apocalyptic number.

43504040452543 is a deficient number, since it is larger than the sum of its proper divisors (5645816059457).

43504040452543 is a wasteful number, since it uses less digits than its factorization.

43504040452543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634135.

The product of its (nonzero) digits is 2304000, while the sum is 43.

The spelling of 43504040452543 in words is "forty-three trillion, five hundred four billion, forty million, four hundred fifty-two thousand, five hundred forty-three".