41457439421 has 2 divisors, whose sum is σ = 41457439422. Its totient is φ = 41457439420.

The previous prime is 41457439403. The next prime is 41457439423. The reversal of 41457439421 is 12493475414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41457439321 + 100 = 203611^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 41457439421 - 2¹⁰ = 41457438397 is a prime.

Together with 41457439423, 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 (41457439423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20728719710 + 20728719711.

It is an arithmetic number, because the mean of its divisors is an integer number (20728719711).

Almost surely, 2^41457439421 is an apocalyptic number.

It is an amenable number.

41457439421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41457439421 is an equidigital number, since it uses as much as digits as its factorization.

41457439421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The spelling of 41457439421 in words is "forty-one billion, four hundred fifty-seven million, four hundred thirty-nine thousand, four hundred twenty-one".