44213560421 has 2 divisors, whose sum is σ = 44213560422. Its totient is φ = 44213560420.

The previous prime is 44213560387. The next prime is 44213560423. The reversal of 44213560421 is 12406531244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39585479521 + 4628080900 = 198961^2 + 68030^2 .

It is a cyclic number.

It is not a de Polignac number, because 44213560421 - 2⁶ = 44213560357 is a prime.

Together with 44213560423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44213560423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22106780210 + 22106780211.

It is an arithmetic number, because the mean of its divisors is an integer number (22106780211).

Almost surely, 2^44213560421 is an apocalyptic number.

It is an amenable number.

44213560421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44213560421 is an equidigital number, since it uses as much as digits as its factorization.

44213560421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 44213560421 in words is "forty-four billion, two hundred thirteen million, five hundred sixty thousand, four hundred twenty-one".