3819523481281 has 2 divisors, whose sum is σ = 3819523481282. Its totient is φ = 3819523481280.

The previous prime is 3819523481273. The next prime is 3819523481359. The reversal of 3819523481281 is 1821843259183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3034421157681 + 785102323600 = 1741959^2 + 886060^2 .

It is a cyclic number.

It is not a de Polignac number, because 3819523481281 - 2³ = 3819523481273 is a prime.

It is a super-2 number, since 2×3819523481281² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3819523481381) 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, 1909761740640 + 1909761740641.

It is an arithmetic number, because the mean of its divisors is an integer number (1909761740641).

Almost surely, 2^{3819523481281} is an apocalyptic number.

It is an amenable number.

3819523481281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3819523481281 is an equidigital number, since it uses as much as digits as its factorization.

3819523481281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 55.

The spelling of 3819523481281 in words is "three trillion, eight hundred nineteen billion, five hundred twenty-three million, four hundred eighty-one thousand, two hundred eighty-one".