13505783344 has 10 divisors (see below), whose sum is σ = 26167455260. Its totient is φ = 6752891664.

The previous prime is 13505783311. The next prime is 13505783359. The reversal of 13505783344 is 44338750531.

It is a self number, because there is not a number n which added to its sum of digits gives 13505783344.

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 as a sum of consecutive naturals, namely, 422055714 + ... + 422055745.

It is an arithmetic number, because the mean of its divisors is an integer number (2616745526).

Almost surely, 2^13505783344 is an apocalyptic number.

It is an amenable number.

13505783344 is a deficient number, since it is larger than the sum of its proper divisors (12661671916).

13505783344 is an equidigital number, since it uses as much as digits as its factorization.

13505783344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844111467 (or 844111461 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 13505783344 in words is "thirteen billion, five hundred five million, seven hundred eighty-three thousand, three hundred forty-four".