814634959493 has 2 divisors, whose sum is σ = 814634959494. Its totient is φ = 814634959492.

The previous prime is 814634959423. The next prime is 814634959547. The reversal of 814634959493 is 394959436418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722530600324 + 92104359169 = 850018^2 + 303487^2 .

It is a cyclic number.

It is not a de Polignac number, because 814634959493 - 2³⁰ = 813561217669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814634959403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407317479746 + 407317479747.

It is an arithmetic number, because the mean of its divisors is an integer number (407317479747).

Almost surely, 2^814634959493 is an apocalyptic number.

It is an amenable number.

814634959493 is a deficient number, since it is larger than the sum of its proper divisors (1).

814634959493 is an equidigital number, since it uses as much as digits as its factorization.

814634959493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100776960, while the sum is 65.

The spelling of 814634959493 in words is "eight hundred fourteen billion, six hundred thirty-four million, nine hundred fifty-nine thousand, four hundred ninety-three".