12647419055041 has 3 divisors (see below), whose sum is σ = 12647422611363. Its totient is φ = 12647415498720.

The previous prime is 12647419055003. The next prime is 12647419055059. The reversal of 12647419055041 is 14055091474621.

The square root of 12647419055041 is 3556321.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 11308955168641 + 1338463886400 = 3362879^2 + 1156920^2 .

It is not a de Polignac number, because 12647419055041 - 2⁷ = 12647419054913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12647419052041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1778161 + ... + 5334481.

It is an arithmetic number, because the mean of its divisors is an integer number (4215807537121).

Almost surely, 2^{12647419055041} is an apocalyptic number.

12647419055041 is the 3556321-st square number.

12647419055041 is the 1778161-st centered octagonal number.

It is an amenable number.

12647419055041 is a deficient number, since it is larger than the sum of its proper divisors (3556322).

12647419055041 is an frugal number, since it uses more digits than its factorization.

12647419055041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112642 (or 3556321 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

Multiplying 12647419055041 by its sum of digits (49), we get a square (619723533697009 = 24894247²).

The spelling of 12647419055041 in words is "twelve trillion, six hundred forty-seven billion, four hundred nineteen million, fifty-five thousand, forty-one".