12245712447 has 8 divisors (see below), whose sum is σ = 16356314160. Its totient is φ = 8149459520.

The previous prime is 12245712421. The next prime is 12245712499. The reversal of 12245712447 is 74421754221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12245712447 - 2⁸ = 12245712191 is a prime.

It is a super-2 number, since 2×12245712447² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12245712547) 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 in 7 ways as a sum of consecutive naturals, for example, 3585204 + ... + 3588617.

It is an arithmetic number, because the mean of its divisors is an integer number (2044539270).

Almost surely, 2^12245712447 is an apocalyptic number.

12245712447 is a deficient number, since it is larger than the sum of its proper divisors (4110601713).

12245712447 is an equidigital number, since it uses as much as digits as its factorization.

12245712447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174393.

The product of its digits is 125440, while the sum is 39.

The spelling of 12245712447 in words is "twelve billion, two hundred forty-five million, seven hundred twelve thousand, four hundred forty-seven".