14668381765 has 4 divisors (see below), whose sum is σ = 17602058124. Its totient is φ = 11734705408.

The previous prime is 14668381759. The next prime is 14668381789. The reversal of 14668381765 is 56718386641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56718386641 = 7 ⋅8102626663.

It can be written as a sum of positive squares in 2 ways, for example, as 4990150881 + 9678230884 = 70641^2 + 98378^2 .

It is a cyclic number.

It is not a de Polignac number, because 14668381765 - 2⁵ = 14668381733 is a prime.

It is a super-2 number, since 2×14668381765² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1466838172 + ... + 1466838181.

It is an arithmetic number, because the mean of its divisors is an integer number (4400514531).

Almost surely, 2^14668381765 is an apocalyptic number.

It is an amenable number.

14668381765 is a deficient number, since it is larger than the sum of its proper divisors (2933676359).

14668381765 is an equidigital number, since it uses as much as digits as its factorization.

14668381765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933676358.

The product of its digits is 5806080, while the sum is 55.

The spelling of 14668381765 in words is "fourteen billion, six hundred sixty-eight million, three hundred eighty-one thousand, seven hundred sixty-five".