43221040545 has 8 divisors (see below), whose sum is σ = 69153664896. Its totient is φ = 23051221616.

The previous prime is 43221040507. The next prime is 43221040553. The reversal of 43221040545 is 54504012234.

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

It is a cyclic number.

It is not a de Polignac number, because 43221040545 - 2⁷ = 43221040417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440701337 + ... + 1440701366.

It is an arithmetic number, because the mean of its divisors is an integer number (8644208112).

Almost surely, 2^43221040545 is an apocalyptic number.

It is an amenable number.

43221040545 is a deficient number, since it is larger than the sum of its proper divisors (25932624351).

43221040545 is a wasteful number, since it uses less digits than its factorization.

43221040545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881402711.

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

Adding to 43221040545 its reverse (54504012234), we get a palindrome (97725052779).

The spelling of 43221040545 in words is "forty-three billion, two hundred twenty-one million, forty thousand, five hundred forty-five".