13681919049846 has 16 divisors (see below), whose sum is σ = 28973475635184. Its totient is φ = 4292366760704.

The previous prime is 13681919049707. The next prime is 13681919049857. The reversal of 13681919049846 is 64894091918631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67068230535 + ... + 67068230738.

It is an arithmetic number, because the mean of its divisors is an integer number (1810842227199).

Almost surely, 2^{13681919049846} is an apocalyptic number.

13681919049846 is an abundant number, since it is smaller than the sum of its proper divisors (15291556585338).

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

13681919049846 is a wasteful number, since it uses less digits than its factorization.

13681919049846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134136461295.

The product of its (nonzero) digits is 80621568, while the sum is 69.

The spelling of 13681919049846 in words is "thirteen trillion, six hundred eighty-one billion, nine hundred nineteen million, forty-nine thousand, eight hundred forty-six".