12976069378 has 4 divisors (see below), whose sum is σ = 19464104070. Its totient is φ = 6488034688.

The previous prime is 12976069369. The next prime is 12976069391. The reversal of 12976069378 is 87396067921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12069878769 + 906190609 = 109863^2 + 30103^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244017343 + ... + 3244017346.

Almost surely, 2^12976069378 is an apocalyptic number.

12976069378 is a deficient number, since it is larger than the sum of its proper divisors (6488034692).

12976069378 is an equidigital number, since it uses as much as digits as its factorization.

12976069378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488034691.

The product of its (nonzero) digits is 6858432, while the sum is 58.

The spelling of 12976069378 in words is "twelve billion, nine hundred seventy-six million, sixty-nine thousand, three hundred seventy-eight".