14178996309 has 4 divisors (see below), whose sum is σ = 18905328416. Its totient is φ = 9452664204.

The previous prime is 14178996253. The next prime is 14178996313. The reversal of 14178996309 is 90369987141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 14178996309 - 2¹¹ = 14178994261 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 (14178996379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2363166049 + ... + 2363166054.

It is an arithmetic number, because the mean of its divisors is an integer number (4726332104).

Almost surely, 2^14178996309 is an apocalyptic number.

It is an amenable number.

14178996309 is a deficient number, since it is larger than the sum of its proper divisors (4726332107).

14178996309 is an equidigital number, since it uses as much as digits as its factorization.

14178996309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726332106.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 14178996309 in words is "fourteen billion, one hundred seventy-eight million, nine hundred ninety-six thousand, three hundred nine".