898452817643 has 2 divisors, whose sum is σ = 898452817644. Its totient is φ = 898452817642.

The previous prime is 898452817621. The next prime is 898452817651. The reversal of 898452817643 is 346718254898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 898452817643 - 2¹⁸ = 898452555499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 898452817643.

It is not a weakly prime, because it can be changed into another prime (898452817663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449226408821 + 449226408822.

It is an arithmetic number, because the mean of its divisors is an integer number (449226408822).

Almost surely, 2^898452817643 is an apocalyptic number.

898452817643 is a deficient number, since it is larger than the sum of its proper divisors (1).

898452817643 is an equidigital number, since it uses as much as digits as its factorization.

898452817643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92897280, while the sum is 65.

The spelling of 898452817643 in words is "eight hundred ninety-eight billion, four hundred fifty-two million, eight hundred seventeen thousand, six hundred forty-three".