12409499069 has 32 divisors (see below), whose sum is σ = 14376579840. Its totient is φ = 10604070400.

The previous prime is 12409499021. The next prime is 12409499101. The reversal of 12409499069 is 96099490421.

It is a happy number.

It is not a de Polignac number, because 12409499069 - 2²⁰ = 12408450493 is a prime.

It is a super-3 number, since 3×12409499069³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 12409499069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12409499369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9717059 + ... + 9718335.

It is an arithmetic number, because the mean of its divisors is an integer number (449268120).

Almost surely, 2^12409499069 is an apocalyptic number.

It is an amenable number.

12409499069 is a deficient number, since it is larger than the sum of its proper divisors (1967080771).

12409499069 is a wasteful number, since it uses less digits than its factorization.

12409499069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The spelling of 12409499069 in words is "twelve billion, four hundred nine million, four hundred ninety-nine thousand, sixty-nine".