9814659664643 has 2 divisors, whose sum is σ = 9814659664644. Its totient is φ = 9814659664642.

The previous prime is 9814659664609. The next prime is 9814659664657. The reversal of 9814659664643 is 3464669564189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9814659664643 - 2⁸ = 9814659664387 is a prime.

It is not a weakly prime, because it can be changed into another prime (9814659664603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4907329832321 + 4907329832322.

It is an arithmetic number, because the mean of its divisors is an integer number (4907329832322).

Almost surely, 2^{9814659664643} is an apocalyptic number.

9814659664643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9814659664643 is an equidigital number, since it uses as much as digits as its factorization.

9814659664643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806215680, while the sum is 71.

The spelling of 9814659664643 in words is "nine trillion, eight hundred fourteen billion, six hundred fifty-nine million, six hundred sixty-four thousand, six hundred forty-three".