14965017209 has 4 divisors (see below), whose sum is σ = 15018273780. Its totient is φ = 14911760640.

The previous prime is 14965017191. The next prime is 14965017247. The reversal of 14965017209 is 90271056941.

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 11020800400 + 3944216809 = 104980^2 + 62803^2 .

It is a cyclic number.

It is not a de Polignac number, because 14965017209 - 2³² = 10670049913 is a prime.

It is a super-2 number, since 2×14965017209² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14965017209.

It is not an unprimeable number, because it can be changed into a prime (14965017259) 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, 26627864 + ... + 26628425.

It is an arithmetic number, because the mean of its divisors is an integer number (3754568445).

Almost surely, 2^14965017209 is an apocalyptic number.

It is an amenable number.

14965017209 is a deficient number, since it is larger than the sum of its proper divisors (53256571).

14965017209 is an equidigital number, since it uses as much as digits as its factorization.

14965017209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53256570.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 14965017209 in words is "fourteen billion, nine hundred sixty-five million, seventeen thousand, two hundred nine".