819002466481 has 2 divisors, whose sum is σ = 819002466482. Its totient is φ = 819002466480.

The previous prime is 819002466413. The next prime is 819002466517. The reversal of 819002466481 is 184664200918.

It is a happy number.

819002466481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 818996040256 + 6426225 = 904984^2 + 2535^2 .

It is a cyclic number.

It is not a de Polignac number, because 819002466481 - 2⁹ = 819002465969 is a prime.

It is a super-2 number, since 2×819002466481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (819002460481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409501233240 + 409501233241.

It is an arithmetic number, because the mean of its divisors is an integer number (409501233241).

Almost surely, 2^819002466481 is an apocalyptic number.

It is an amenable number.

819002466481 is a deficient number, since it is larger than the sum of its proper divisors (1).

819002466481 is an equidigital number, since it uses as much as digits as its factorization.

819002466481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 819002466481 in words is "eight hundred nineteen billion, two million, four hundred sixty-six thousand, four hundred eighty-one".