8141621629 has 2 divisors, whose sum is σ = 8141621630. Its totient is φ = 8141621628.

The previous prime is 8141621569. The next prime is 8141621651. The reversal of 8141621629 is 9261261418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8028518404 + 113103225 = 89602^2 + 10635^2 .

It is a cyclic number.

It is not a de Polignac number, because 8141621629 - 2¹¹ = 8141619581 is a prime.

It is a super-2 number, since 2×8141621629² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8141621591 and 8141621600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8141681629) 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, 4070810814 + 4070810815.

It is an arithmetic number, because the mean of its divisors is an integer number (4070810815).

Almost surely, 2^8141621629 is an apocalyptic number.

It is an amenable number.

8141621629 is a deficient number, since it is larger than the sum of its proper divisors (1).

8141621629 is an equidigital number, since it uses as much as digits as its factorization.

8141621629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 8141621629 is about 90230.9349890602. The cubic root of 8141621629 is about 2011.7328380773.

The spelling of 8141621629 in words is "eight billion, one hundred forty-one million, six hundred twenty-one thousand, six hundred twenty-nine".