43452040521 has 8 divisors (see below), whose sum is σ = 57937707520. Its totient is φ = 28967200272.

The previous prime is 43452040483. The next prime is 43452040531. The reversal of 43452040521 is 12504025434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43452040521 - 2¹⁰ = 43452039497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43452040531) 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 7 ways as a sum of consecutive naturals, for example, 71401 + ... + 303318.

It is an arithmetic number, because the mean of its divisors is an integer number (7242213440).

Almost surely, 2^43452040521 is an apocalyptic number.

It is an amenable number.

43452040521 is a deficient number, since it is larger than the sum of its proper divisors (14485666999).

43452040521 is a wasteful number, since it uses less digits than its factorization.

43452040521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413375.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 43452040521 its reverse (12504025434), we get a palindrome (55956065955).

The spelling of 43452040521 in words is "forty-three billion, four hundred fifty-two million, forty thousand, five hundred twenty-one".