10447394281 has 2 divisors, whose sum is σ = 10447394282. Its totient is φ = 10447394280.

The previous prime is 10447394189. The next prime is 10447394303. The reversal of 10447394281 is 18249374401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9699098256 + 748296025 = 98484^2 + 27355^2 .

It is a cyclic number.

It is not a de Polignac number, because 10447394281 - 2⁹ = 10447393769 is a prime.

It is a super-2 number, since 2×10447394281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10447398281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5223697140 + 5223697141.

It is an arithmetic number, because the mean of its divisors is an integer number (5223697141).

Almost surely, 2^10447394281 is an apocalyptic number.

It is an amenable number.

10447394281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10447394281 is an equidigital number, since it uses as much as digits as its factorization.

10447394281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 10447394281 in words is "ten billion, four hundred forty-seven million, three hundred ninety-four thousand, two hundred eighty-one".