12943694278 has 8 divisors (see below), whose sum is σ = 19867065768. Its totient is φ = 6321339024.

The previous prime is 12943694261. The next prime is 12943694279. The reversal of 12943694278 is 87249634921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12943694279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75253951 + ... + 75254122.

It is an arithmetic number, because the mean of its divisors is an integer number (2483383221).

Almost surely, 2^12943694278 is an apocalyptic number.

12943694278 is a deficient number, since it is larger than the sum of its proper divisors (6923371490).

12943694278 is a wasteful number, since it uses less digits than its factorization.

12943694278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150508118.

The product of its digits is 5225472, while the sum is 55.

The spelling of 12943694278 in words is "twelve billion, nine hundred forty-three million, six hundred ninety-four thousand, two hundred seventy-eight".