7421663141 has 2 divisors, whose sum is σ = 7421663142. Its totient is φ = 7421663140.

The previous prime is 7421663111. The next prime is 7421663143. The reversal of 7421663141 is 1413661247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6507810241 + 913852900 = 80671^2 + 30230^2 .

It is an emirp because it is prime and its reverse (1413661247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7421663141 - 2¹⁰ = 7421662117 is a prime.

Together with 7421663143, 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 (7421663143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710831570 + 3710831571.

It is an arithmetic number, because the mean of its divisors is an integer number (3710831571).

Almost surely, 2^7421663141 is an apocalyptic number.

It is an amenable number.

7421663141 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421663141 is an equidigital number, since it uses as much as digits as its factorization.

7421663141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 7421663141 is about 86149.0751024061. The cubic root of 7421663141 is about 1950.5948779831.

The spelling of 7421663141 in words is "seven billion, four hundred twenty-one million, six hundred sixty-three thousand, one hundred forty-one".