12693368378 has 8 divisors (see below), whose sum is σ = 19040537172. Its totient is φ = 6346522656.

The previous prime is 12693368329. The next prime is 12693368431. The reversal of 12693368378 is 87386339621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12026850889 + 666517489 = 109667^2 + 25817^2 .

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

It is a super-2 number, since 2×12693368378² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87926 + ... + 181982.

Almost surely, 2^12693368378 is an apocalyptic number.

12693368378 is a deficient number, since it is larger than the sum of its proper divisors (6347168794).

12693368378 is an equidigital number, since it uses as much as digits as its factorization.

12693368378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161536.

The product of its digits is 7838208, while the sum is 56.

The spelling of 12693368378 in words is "twelve billion, six hundred ninety-three million, three hundred sixty-eight thousand, three hundred seventy-eight".