13973813911 has 4 divisors (see below), whose sum is σ = 13975433032. Its totient is φ = 13972194792.

The previous prime is 13973813869. The next prime is 13973813923. The reversal of 13973813911 is 11931837931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13973813911 - 2¹⁷ = 13973682839 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 (13973817911) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 796545 + ... + 813898.

It is an arithmetic number, because the mean of its divisors is an integer number (3493858258).

Almost surely, 2^13973813911 is an apocalyptic number.

13973813911 is a deficient number, since it is larger than the sum of its proper divisors (1619121).

13973813911 is an equidigital number, since it uses as much as digits as its factorization.

13973813911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619120.

The product of its digits is 122472, while the sum is 46.

The spelling of 13973813911 in words is "thirteen billion, nine hundred seventy-three million, eight hundred thirteen thousand, nine hundred eleven".