43320848018721 has 24 divisors (see below), whose sum is σ = 71481230210880. Its totient is φ = 22850557194816.

The previous prime is 43320848018629. The next prime is 43320848018731. The reversal of 43320848018721 is 12781084802334.

It is a happy number.

It is not a de Polignac number, because 43320848018721 - 2¹⁹ = 43320847494433 is a prime.

It is a super-2 number, since 2×43320848018721² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43320848018731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6103243566 + ... + 6103250663.

It is an arithmetic number, because the mean of its divisors is an integer number (2978384592120).

Almost surely, 2^{43320848018721} is an apocalyptic number.

It is an amenable number.

43320848018721 is a deficient number, since it is larger than the sum of its proper divisors (28160382192159).

43320848018721 is a wasteful number, since it uses less digits than its factorization.

43320848018721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206494265 (or 12206494252 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 43320848018721 in words is "forty-three trillion, three hundred twenty billion, eight hundred forty-eight million, eighteen thousand, seven hundred twenty-one".