13379818816 has 56 divisors (see below), whose sum is σ = 32677648640. Its totient is φ = 5293112832.

The previous prime is 13379818787. The next prime is 13379818841. The reversal of 13379818816 is 61881897331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142856 + ... + 1154503.

It is an arithmetic number, because the mean of its divisors is an integer number (583529440).

Almost surely, 2^13379818816 is an apocalyptic number.

13379818816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13379818816 is an abundant number, since it is smaller than the sum of its proper divisors (19297829824).

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

13379818816 is a wasteful number, since it uses less digits than its factorization.

13379818816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297391 (or 2297381 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 55.

The spelling of 13379818816 in words is "thirteen billion, three hundred seventy-nine million, eight hundred eighteen thousand, eight hundred sixteen".