40543432345 has 16 divisors (see below), whose sum is σ = 55476625680. Its totient is φ = 28178601984.

The previous prime is 40543432333. The next prime is 40543432361. The reversal of 40543432345 is 54323434504.

40543432345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 700078681 + 39843353664 = 26459^2 + 199608^2 .

It is not a de Polignac number, because 40543432345 - 2⁹ = 40543431833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18344340 + ... + 18346549.

It is an arithmetic number, because the mean of its divisors is an integer number (3467289105).

Almost surely, 2^40543432345 is an apocalyptic number.

It is an amenable number.

40543432345 is a deficient number, since it is larger than the sum of its proper divisors (14933193335).

40543432345 is a wasteful number, since it uses less digits than its factorization.

40543432345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36690924.

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 40543432345 its reverse (54323434504), we get a palindrome (94866866849).

The spelling of 40543432345 in words is "forty billion, five hundred forty-three million, four hundred thirty-two thousand, three hundred forty-five".