5644421012231 has 2 divisors, whose sum is σ = 5644421012232. Its totient is φ = 5644421012230.

The previous prime is 5644421012203. The next prime is 5644421012369. The reversal of 5644421012231 is 1322101244465.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5644421012231 is a prime.

It is a super-2 number, since 2×5644421012231² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5644421012191 and 5644421012200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5644421015231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822210506115 + 2822210506116.

It is an arithmetic number, because the mean of its divisors is an integer number (2822210506116).

Almost surely, 2^{5644421012231} is an apocalyptic number.

5644421012231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644421012231 is an equidigital number, since it uses as much as digits as its factorization.

5644421012231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 5644421012231 its reverse (1322101244465), we get a palindrome (6966522256696).

The spelling of 5644421012231 in words is "five trillion, six hundred forty-four billion, four hundred twenty-one million, twelve thousand, two hundred thirty-one".