41021241643 has 2 divisors, whose sum is σ = 41021241644. Its totient is φ = 41021241642.

The previous prime is 41021241637. The next prime is 41021241671. The reversal of 41021241643 is 34614212014.

41021241643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (41021241671) can be obtained adding 41021241643 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41021241643 is a prime.

It is not a weakly prime, because it can be changed into another prime (41021241673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20510620821 + 20510620822.

It is an arithmetic number, because the mean of its divisors is an integer number (20510620822).

Almost surely, 2^41021241643 is an apocalyptic number.

41021241643 is a deficient number, since it is larger than the sum of its proper divisors (1).

41021241643 is an equidigital number, since it uses as much as digits as its factorization.

41021241643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 41021241643 its reverse (34614212014), we get a palindrome (75635453657).

The spelling of 41021241643 in words is "forty-one billion, twenty-one million, two hundred forty-one thousand, six hundred forty-three".