12405247567 has 2 divisors, whose sum is σ = 12405247568. Its totient is φ = 12405247566.

The previous prime is 12405247549. The next prime is 12405247577. The reversal of 12405247567 is 76574250421.

It is a strong prime.

It is an emirp because it is prime and its reverse (76574250421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12405247567 - 2¹¹ = 12405245519 is a prime.

It is a super-3 number, since 3×12405247567³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12405247537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202623783 + 6202623784.

It is an arithmetic number, because the mean of its divisors is an integer number (6202623784).

Almost surely, 2^12405247567 is an apocalyptic number.

12405247567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12405247567 is an equidigital number, since it uses as much as digits as its factorization.

12405247567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 43.

Adding to 12405247567 its reverse (76574250421), we get a palindrome (88979497988).

The spelling of 12405247567 in words is "twelve billion, four hundred five million, two hundred forty-seven thousand, five hundred sixty-seven".