13217374543 has 8 divisors (see below), whose sum is σ = 13661069312. Its totient is φ = 12778230816.

The previous prime is 13217374537. The next prime is 13217374579. The reversal of 13217374543 is 34547371231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13217374543 - 2⁹ = 13217374031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13217374496 and 13217374505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13217374243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131855 + ... + 1143472.

It is an arithmetic number, because the mean of its divisors is an integer number (1707633664).

Almost surely, 2^13217374543 is an apocalyptic number.

13217374543 is a deficient number, since it is larger than the sum of its proper divisors (443694769).

13217374543 is a wasteful number, since it uses less digits than its factorization.

13217374543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275521.

The product of its digits is 211680, while the sum is 40.

The spelling of 13217374543 in words is "thirteen billion, two hundred seventeen million, three hundred seventy-four thousand, five hundred forty-three".