12947378398 has 16 divisors (see below), whose sum is σ = 20565770400. Its totient is φ = 6092206336.

The previous prime is 12947378387. The next prime is 12947378399. The reversal of 12947378398 is 89387374921.

12947378398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12947378399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425703 + ... + 455101.

It is an arithmetic number, because the mean of its divisors is an integer number (1285360650).

Almost surely, 2^12947378398 is an apocalyptic number.

12947378398 is a deficient number, since it is larger than the sum of its proper divisors (7618392002).

12947378398 is a wasteful number, since it uses less digits than its factorization.

12947378398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42371.

The product of its digits is 18289152, while the sum is 61.

The spelling of 12947378398 in words is "twelve billion, nine hundred forty-seven million, three hundred seventy-eight thousand, three hundred ninety-eight".