13493218844 has 48 divisors (see below), whose sum is σ = 27968403456. Its totient is φ = 5573880000.

The previous prime is 13493218831. The next prime is 13493218873. The reversal of 13493218844 is 44881239431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186902 + ... + 248834.

It is an arithmetic number, because the mean of its divisors is an integer number (582675072).

Almost surely, 2^13493218844 is an apocalyptic number.

13493218844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13493218844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13984201728).

13493218844 is an abundant number, since it is smaller than the sum of its proper divisors (14475184612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13493218844 is a wasteful number, since it uses less digits than its factorization.

13493218844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62226 (or 62224 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The spelling of 13493218844 in words is "thirteen billion, four hundred ninety-three million, two hundred eighteen thousand, eight hundred forty-four".