8414521543291 has 2 divisors, whose sum is σ = 8414521543292. Its totient is φ = 8414521543290.

The previous prime is 8414521543289. The next prime is 8414521543303. The reversal of 8414521543291 is 1923451254148.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8414521543291 - 2¹ = 8414521543289 is a prime.

It is a super-2 number, since 2×8414521543291² (a number of 27 digits) contains 22 as substring.

Together with 8414521543289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8414521541291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4207260771645 + 4207260771646.

It is an arithmetic number, because the mean of its divisors is an integer number (4207260771646).

Almost surely, 2^{8414521543291} is an apocalyptic number.

8414521543291 is a deficient number, since it is larger than the sum of its proper divisors (1).

8414521543291 is an equidigital number, since it uses as much as digits as its factorization.

8414521543291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382400, while the sum is 49.

The spelling of 8414521543291 in words is "eight trillion, four hundred fourteen billion, five hundred twenty-one million, five hundred forty-three thousand, two hundred ninety-one".