10000008281 has 4 divisors (see below), whose sum is σ = 10243910964. Its totient is φ = 9756105600.

The previous prime is 10000008229. The next prime is 10000008307. The reversal of 10000008281 is 18280000001.

10000008281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 485761600 + 9514246681 = 22040^2 + 97541^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000008281 - 2⁶ = 10000008217 is a prime.

It is a super-2 number, since 2×10000008281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000008581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121951280 + ... + 121951361.

It is an arithmetic number, because the mean of its divisors is an integer number (2560977741).

Almost surely, 2^10000008281 is an apocalyptic number.

It is an amenable number.

10000008281 is a deficient number, since it is larger than the sum of its proper divisors (243902683).

10000008281 is an equidigital number, since it uses as much as digits as its factorization.

10000008281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243902682.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10000008281 its reverse (18280000001), we get a palindrome (28280008282).

It can be divided in two parts, 1000000 and 8281, that multiplied together give a square (8281000000 = 91000²).

The spelling of 10000008281 in words is "ten billion, eight thousand, two hundred eighty-one".