12947778550594 has 16 divisors (see below), whose sum is σ = 19442810310840. Its totient is φ = 6466842138240.

The previous prime is 12947778550591. The next prime is 12947778550627. The reversal of 12947778550594 is 49505587774921.

It can be written as a sum of positive squares in 4 ways, for example, as 12901293034569 + 46485516025 = 3591837^2 + 215605^2 .

It is not an unprimeable number, because it can be changed into a prime (12947778550591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106673212 + ... + 106794520.

Almost surely, 2^{12947778550594} is an apocalyptic number.

12947778550594 is a deficient number, since it is larger than the sum of its proper divisors (6495031760246).

12947778550594 is a wasteful number, since it uses less digits than its factorization.

12947778550594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178965.

The product of its (nonzero) digits is 889056000, while the sum is 73.

The spelling of 12947778550594 in words is "twelve trillion, nine hundred forty-seven billion, seven hundred seventy-eight million, five hundred fifty thousand, five hundred ninety-four".