13217677944419 has 4 divisors (see below), whose sum is σ = 14234422401696. Its totient is φ = 12200933487144.

The previous prime is 13217677944413. The next prime is 13217677944421. The reversal of 13217677944419 is 91444977671231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13217677944419 - 2⁴ = 13217677944403 is a prime.

It is a super-4 number, since 4×13217677944419⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13217677944413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508372228619 + ... + 508372228644.

It is an arithmetic number, because the mean of its divisors is an integer number (3558605600424).

Almost surely, 2^{13217677944419} is an apocalyptic number.

13217677944419 is a deficient number, since it is larger than the sum of its proper divisors (1016744457277).

13217677944419 is a wasteful number, since it uses less digits than its factorization.

13217677944419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016744457276.

The product of its digits is 64012032, while the sum is 65.

The spelling of 13217677944419 in words is "thirteen trillion, two hundred seventeen billion, six hundred seventy-seven million, nine hundred forty-four thousand, four hundred nineteen".