13438769616 has 100 divisors (see below), whose sum is σ = 40942915200. Its totient is φ = 4243814208.

The previous prime is 13438769611. The next prime is 13438769653. The reversal of 13438769616 is 61696783431.

It is a happy number.

13438769616 is a `hidden beast` number, since 13 + 4 + 3 + 8 + 7 + 6 + 9 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438769611) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 248256 + ... + 297503.

It is an arithmetic number, because the mean of its divisors is an integer number (409429152).

Almost surely, 2^13438769616 is an apocalyptic number.

13438769616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13438769616 is an abundant number, since it is smaller than the sum of its proper divisors (27504145584).

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

13438769616 is a wasteful number, since it uses less digits than its factorization.

13438769616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545798 (or 545783 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 13438769616 in words is "thirteen billion, four hundred thirty-eight million, seven hundred sixty-nine thousand, six hundred sixteen".