14109815617 has 4 divisors (see below), whose sum is σ = 14111884996. Its totient is φ = 14107746240.

The previous prime is 14109815611. The next prime is 14109815641. The reversal of 14109815617 is 71651890141.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13096284721 + 1013530896 = 114439^2 + 31836^2 .

It is a cyclic number.

It is not a de Polignac number, because 14109815617 - 2¹¹ = 14109813569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14109815611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024428 + ... + 1038109.

It is an arithmetic number, because the mean of its divisors is an integer number (3527971249).

Almost surely, 2^14109815617 is an apocalyptic number.

It is an amenable number.

14109815617 is a deficient number, since it is larger than the sum of its proper divisors (2069379).

14109815617 is an equidigital number, since it uses as much as digits as its factorization.

14109815617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069378.

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 14109815617 in words is "fourteen billion, one hundred nine million, eight hundred fifteen thousand, six hundred seventeen".