5443681321 has 32 divisors (see below), whose sum is σ = 6182184960. Its totient is φ = 4758372864.

The previous prime is 5443681307. The next prime is 5443681339. The reversal of 5443681321 is 1231863445.

5443681321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5443681321 - 2¹¹ = 5443679273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5443681381) 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, 6136740 + ... + 6137626.

It is an arithmetic number, because the mean of its divisors is an integer number (193193280).

Almost surely, 2^5443681321 is an apocalyptic number.

It is an amenable number.

5443681321 is a deficient number, since it is larger than the sum of its proper divisors (738503639).

5443681321 is a wasteful number, since it uses less digits than its factorization.

5443681321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its digits is 69120, while the sum is 37.

The square root of 5443681321 is about 73781.3073955728. The cubic root of 5443681321 is about 1759.1284985606.

The spelling of 5443681321 in words is "five billion, four hundred forty-three million, six hundred eighty-one thousand, three hundred twenty-one".