13217249773 has 16 divisors (see below), whose sum is σ = 16275369600. Its totient is φ = 10452470976.

The previous prime is 13217249741. The next prime is 13217249783. The reversal of 13217249773 is 37794271231.

It is a cyclic number.

It is not a de Polignac number, because 13217249773 - 2⁵ = 13217249741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13217249783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156411 + ... + 225607.

It is an arithmetic number, because the mean of its divisors is an integer number (1017210600).

Almost surely, 2^13217249773 is an apocalyptic number.

13217249773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13217249773 is a deficient number, since it is larger than the sum of its proper divisors (3058119827).

13217249773 is a wasteful number, since it uses less digits than its factorization.

13217249773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71316.

The product of its digits is 444528, while the sum is 46.

The spelling of 13217249773 in words is "thirteen billion, two hundred seventeen million, two hundred forty-nine thousand, seven hundred seventy-three".