12447467531 has 2 divisors, whose sum is σ = 12447467532. Its totient is φ = 12447467530.

The previous prime is 12447467521. The next prime is 12447467561. The reversal of 12447467531 is 13576474421.

12447467531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12447467531 - 2¹⁴ = 12447451147 is a prime.

It is a super-2 number, since 2×12447467531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12447467521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6223733765 + 6223733766.

It is an arithmetic number, because the mean of its divisors is an integer number (6223733766).

Almost surely, 2^12447467531 is an apocalyptic number.

12447467531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12447467531 is an equidigital number, since it uses as much as digits as its factorization.

12447467531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 44.

The spelling of 12447467531 in words is "twelve billion, four hundred forty-seven million, four hundred sixty-seven thousand, five hundred thirty-one".