12455433533247 has 8 divisors (see below), whose sum is σ = 17179908321840. Its totient is φ = 8017290550080.

The previous prime is 12455433533239. The next prime is 12455433533329. The reversal of 12455433533247 is 74233533455421.

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

It is not a de Polignac number, because 12455433533247 - 2³ = 12455433533239 is a prime.

It is a super-2 number, since 2×12455433533247² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12455433533247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12455431533247) 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, 71582951254 + ... + 71582951427.

It is an arithmetic number, because the mean of its divisors is an integer number (2147488540230).

Almost surely, 2^{12455433533247} is an apocalyptic number.

12455433533247 is a deficient number, since it is larger than the sum of its proper divisors (4724474788593).

12455433533247 is a wasteful number, since it uses less digits than its factorization.

12455433533247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143165902713.

The product of its digits is 18144000, while the sum is 51.

Adding to 12455433533247 its reverse (74233533455421), we get a palindrome (86688966988668).

The spelling of 12455433533247 in words is "twelve trillion, four hundred fifty-five billion, four hundred thirty-three million, five hundred thirty-three thousand, two hundred forty-seven".