13438756353 has 16 divisors (see below), whose sum is σ = 19580273856. Its totient is φ = 8130954240.

The previous prime is 13438756349. The next prime is 13438756477. The reversal of 13438756353 is 35365783431.

It is not a de Polignac number, because 13438756353 - 2² = 13438756349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13438758353) 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, 323800 + ... + 362937.

It is an arithmetic number, because the mean of its divisors is an integer number (1223767116).

Almost surely, 2^13438756353 is an apocalyptic number.

It is an amenable number.

13438756353 is a deficient number, since it is larger than the sum of its proper divisors (6141517503).

13438756353 is a wasteful number, since it uses less digits than its factorization.

13438756353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687344.

The product of its digits is 2721600, while the sum is 48.

The spelling of 13438756353 in words is "thirteen billion, four hundred thirty-eight million, seven hundred fifty-six thousand, three hundred fifty-three".