14399658409 has 4 divisors (see below), whose sum is σ = 14788838404. Its totient is φ = 14010478416.

The previous prime is 14399658391. The next prime is 14399658437. The reversal of 14399658409 is 90485699341.

14399658409 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, and also an emirpimes, since its reverse is a distinct semiprime: 90485699341 = 29 ⋅3120196529.

It can be written as a sum of positive squares in 2 ways, for example, as 13174448400 + 1225210009 = 114780^2 + 35003^2 .

It is a cyclic number.

It is not a de Polignac number, because 14399658409 - 2⁹ = 14399657897 is a prime.

It is a super-2 number, since 2×14399658409² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14399658499) 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, 194589942 + ... + 194590015.

It is an arithmetic number, because the mean of its divisors is an integer number (3697209601).

Almost surely, 2^14399658409 is an apocalyptic number.

It is an amenable number.

14399658409 is a deficient number, since it is larger than the sum of its proper divisors (389179995).

14399658409 is an equidigital number, since it uses as much as digits as its factorization.

14399658409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389179994.

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 14399658409 in words is "fourteen billion, three hundred ninety-nine million, six hundred fifty-eight thousand, four hundred nine".