12674355278278 has 4 divisors (see below), whose sum is σ = 19011532917420. Its totient is φ = 6337177639138.

The previous prime is 12674355278209. The next prime is 12674355278287. The reversal of 12674355278278 is 87287255347621.

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

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3168588819568 + ... + 3168588819571.

It is an arithmetic number, because the mean of its divisors is an integer number (4752883229355).

Almost surely, 2^{12674355278278} is an apocalyptic number.

12674355278278 is a deficient number, since it is larger than the sum of its proper divisors (6337177639142).

12674355278278 is an equidigital number, since it uses as much as digits as its factorization.

12674355278278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337177639141.

The product of its digits is 316108800, while the sum is 67.

The spelling of 12674355278278 in words is "twelve trillion, six hundred seventy-four billion, three hundred fifty-five million, two hundred seventy-eight thousand, two hundred seventy-eight".