1346779135678 has 4 divisors (see below), whose sum is σ = 2020168703520. Its totient is φ = 673389567838.

The previous prime is 1346779135673. The next prime is 1346779135693. The reversal of 1346779135678 is 8765319776431.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346779135673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336694783918 + ... + 336694783921.

It is an arithmetic number, because the mean of its divisors is an integer number (505042175880).

Almost surely, 2^{1346779135678} is an apocalyptic number.

1346779135678 is a deficient number, since it is larger than the sum of its proper divisors (673389567842).

1346779135678 is an equidigital number, since it uses as much as digits as its factorization.

1346779135678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673389567841.

The product of its digits is 160030080, while the sum is 67.

The spelling of 1346779135678 in words is "one trillion, three hundred forty-six billion, seven hundred seventy-nine million, one hundred thirty-five thousand, six hundred seventy-eight".