800028159481 has 2 divisors, whose sum is σ = 800028159482. Its totient is φ = 800028159480.

The previous prime is 800028159443. The next prime is 800028159487. The reversal of 800028159481 is 184951820008.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645425851456 + 154602308025 = 803384^2 + 393195^2 .

It is a cyclic number.

It is not a de Polignac number, because 800028159481 - 2¹⁵ = 800028126713 is a prime.

It is a super-2 number, since 2×800028159481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (800028159487) 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, 400014079740 + 400014079741.

It is an arithmetic number, because the mean of its divisors is an integer number (400014079741).

Almost surely, 2^800028159481 is an apocalyptic number.

It is an amenable number.

800028159481 is a deficient number, since it is larger than the sum of its proper divisors (1).

800028159481 is an equidigital number, since it uses as much as digits as its factorization.

800028159481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 46.

Adding to 800028159481 its reverse (184951820008), we get a palindrome (984979979489).

The spelling of 800028159481 in words is "eight hundred billion, twenty-eight million, one hundred fifty-nine thousand, four hundred eighty-one".