12533214447 has 12 divisors (see below), whose sum is σ = 19496111544. Its totient is φ = 7712747280.

The previous prime is 12533214443. The next prime is 12533214457. The reversal of 12533214447 is 74441233521.

12533214447 is a `hidden beast` number, since 1 + 253 + 321 + 44 + 47 = 666.

It is not a de Polignac number, because 12533214447 - 2² = 12533214443 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533214443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53560629 + ... + 53560862.

It is an arithmetic number, because the mean of its divisors is an integer number (1624675962).

Almost surely, 2^12533214447 is an apocalyptic number.

12533214447 is a deficient number, since it is larger than the sum of its proper divisors (6962897097).

12533214447 is a wasteful number, since it uses less digits than its factorization.

12533214447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107121510 (or 107121507 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

Adding to 12533214447 its reverse (74441233521), we get a palindrome (86974447968).

The spelling of 12533214447 in words is "twelve billion, five hundred thirty-three million, two hundred fourteen thousand, four hundred forty-seven".