5643321427 has 4 divisors (see below), whose sum is σ = 5644028880. Its totient is φ = 5642613976.

The previous prime is 5643321391. The next prime is 5643321433. The reversal of 5643321427 is 7241233465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7241233465 = 5 ⋅1448246693.

It is a cyclic number.

It is not a de Polignac number, because 5643321427 - 2²³ = 5634932819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5643321527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341623 + ... + 357760.

It is an arithmetic number, because the mean of its divisors is an integer number (1411007220).

Almost surely, 2^5643321427 is an apocalyptic number.

5643321427 is a deficient number, since it is larger than the sum of its proper divisors (707453).

5643321427 is an equidigital number, since it uses as much as digits as its factorization.

5643321427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707452.

The product of its digits is 120960, while the sum is 37.

The square root of 5643321427 is about 75122.0435491474. The cubic root of 5643321427 is about 1780.3754444124.

The spelling of 5643321427 in words is "five billion, six hundred forty-three million, three hundred twenty-one thousand, four hundred twenty-seven".