14354993509 has 4 divisors (see below), whose sum is σ = 14355308716. Its totient is φ = 14354678304.

The previous prime is 14354993503. The next prime is 14354993593. The reversal of 14354993509 is 90539945341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90539945341 = 24077 ⋅3760433.

It can be written as a sum of positive squares in 2 ways, for example, as 3642122500 + 10712871009 = 60350^2 + 103503^2 .

It is a cyclic number.

It is not a de Polignac number, because 14354993509 - 2¹¹ = 14354991461 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 (14354993503) 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, 74784 + ... + 185209.

It is an arithmetic number, because the mean of its divisors is an integer number (3588827179).

Almost surely, 2^14354993509 is an apocalyptic number.

It is an amenable number.

14354993509 is a deficient number, since it is larger than the sum of its proper divisors (315207).

14354993509 is an equidigital number, since it uses as much as digits as its factorization.

14354993509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315206.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 14354993509 in words is "fourteen billion, three hundred fifty-four million, nine hundred ninety-three thousand, five hundred nine".