13965810899 has 4 divisors (see below), whose sum is σ = 14416320960. Its totient is φ = 13515300840.

The previous prime is 13965810893. The next prime is 13965810919. The reversal of 13965810899 is 99801856931.

13965810899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13965810899 - 2⁴ = 13965810883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13965810893) 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, 225254984 + ... + 225255045.

It is an arithmetic number, because the mean of its divisors is an integer number (3604080240).

Almost surely, 2^13965810899 is an apocalyptic number.

13965810899 is a deficient number, since it is larger than the sum of its proper divisors (450510061).

13965810899 is an equidigital number, since it uses as much as digits as its factorization.

13965810899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450510060.

The product of its (nonzero) digits is 4199040, while the sum is 59.

The spelling of 13965810899 in words is "thirteen billion, nine hundred sixty-five million, eight hundred ten thousand, eight hundred ninety-nine".