13949788111 has 32 divisors (see below), whose sum is σ = 16695360000. Its totient is φ = 11408100480.

The previous prime is 13949788109. The next prime is 13949788117. The reversal of 13949788111 is 11188794931.

It is a happy number.

It is not a de Polignac number, because 13949788111 - 2¹ = 13949788109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949788117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2733240 + ... + 2738338.

It is an arithmetic number, because the mean of its divisors is an integer number (521730000).

Almost surely, 2^13949788111 is an apocalyptic number.

13949788111 is a deficient number, since it is larger than the sum of its proper divisors (2745571889).

13949788111 is a wasteful number, since it uses less digits than its factorization.

13949788111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359.

The product of its digits is 435456, while the sum is 52.

The spelling of 13949788111 in words is "thirteen billion, nine hundred forty-nine million, seven hundred eighty-eight thousand, one hundred eleven".