13779689654 has 8 divisors (see below), whose sum is σ = 20670101760. Its totient is φ = 6889655736.

The previous prime is 13779689653. The next prime is 13779689663. The reversal of 13779689654 is 45698697731.

13779689654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13779689653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28652 + ... + 168464.

It is an arithmetic number, because the mean of its divisors is an integer number (2583762720).

Almost surely, 2^13779689654 is an apocalyptic number.

13779689654 is a deficient number, since it is larger than the sum of its proper divisors (6890412106).

13779689654 is a wasteful number, since it uses less digits than its factorization.

13779689654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189094.

The product of its digits is 68584320, while the sum is 65.

The spelling of 13779689654 in words is "thirteen billion, seven hundred seventy-nine million, six hundred eighty-nine thousand, six hundred fifty-four".