12978053422 has 8 divisors (see below), whose sum is σ = 19505327400. Its totient is φ = 6476277624.

The previous prime is 12978053411. The next prime is 12978053441. The reversal of 12978053422 is 22435087921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6373272 + ... + 6375307.

It is an arithmetic number, because the mean of its divisors is an integer number (2438165925).

Almost surely, 2^12978053422 is an apocalyptic number.

12978053422 is a deficient number, since it is larger than the sum of its proper divisors (6527273978).

12978053422 is a wasteful number, since it uses less digits than its factorization.

12978053422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12749090.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 12978053422 in words is "twelve billion, nine hundred seventy-eight million, fifty-three thousand, four hundred twenty-two".