12747619744424 has 8 divisors (see below), whose sum is σ = 23901787020810. Its totient is φ = 6373809872208.

The previous prime is 12747619744417. The next prime is 12747619744441. The reversal of 12747619744424 is 42444791674721.

It can be written as a sum of positive squares in only one way, i.e., 12632550892900 + 115068851524 = 3554230^2 + 339218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 796726234019 + ... + 796726234034.

Almost surely, 2^{12747619744424} is an apocalyptic number.

It is an amenable number.

12747619744424 is a deficient number, since it is larger than the sum of its proper divisors (11154167276386).

12747619744424 is a wasteful number, since it uses less digits than its factorization.

12747619744424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593452468059 (or 1593452468055 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 62.

The spelling of 12747619744424 in words is "twelve trillion, seven hundred forty-seven billion, six hundred nineteen million, seven hundred forty-four thousand, four hundred twenty-four".