1344684878663 has 16 divisors (see below), whose sum is σ = 1540985472000. Its totient is φ = 1149435948192.

The previous prime is 1344684878657. The next prime is 1344684878681. The reversal of 1344684878663 is 3668784864431.

It is not a de Polignac number, because 1344684878663 - 2¹⁶ = 1344684813127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1344684878593 and 1344684878602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344684878633) 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 in 15 ways as a sum of consecutive naturals, for example, 18095378 + ... + 18169536.

It is an arithmetic number, because the mean of its divisors is an integer number (96311592000).

Almost surely, 2^{1344684878663} is an apocalyptic number.

1344684878663 is a deficient number, since it is larger than the sum of its proper divisors (196300593337).

1344684878663 is an equidigital number, since it uses as much as digits as its factorization.

1344684878663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81214.

The product of its digits is 445906944, while the sum is 68.

The spelling of 1344684878663 in words is "one trillion, three hundred forty-four billion, six hundred eighty-four million, eight hundred seventy-eight thousand, six hundred sixty-three".