999981682463 has 2 divisors, whose sum is σ = 999981682464. Its totient is φ = 999981682462.

The previous prime is 999981682457. The next prime is 999981682471. The reversal of 999981682463 is 364286189999.

It is a weak prime.

It is an emirp because it is prime and its reverse (364286189999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999981682463 - 2²⁰ = 999980633887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999981682363) 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, 499990841231 + 499990841232.

It is an arithmetic number, because the mean of its divisors is an integer number (499990841232).

Almost surely, 2^999981682463 is an apocalyptic number.

999981682463 is a deficient number, since it is larger than the sum of its proper divisors (1).

999981682463 is an equidigital number, since it uses as much as digits as its factorization.

999981682463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362797056, while the sum is 74.

The spelling of 999981682463 in words is "nine hundred ninety-nine billion, nine hundred eighty-one million, six hundred eighty-two thousand, four hundred sixty-three".