12075405309 has 12 divisors (see below), whose sum is σ = 19027911552. Its totient is φ = 7318427400.

The previous prime is 12075405289. The next prime is 12075405311. The reversal of 12075405309 is 90350457021.

12075405309 is a `hidden beast` number, since 12 + 0 + 75 + 40 + 530 + 9 = 666.

It is not a de Polignac number, because 12075405309 - 2¹¹ = 12075403261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12075405319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60986797 + ... + 60986994.

It is an arithmetic number, because the mean of its divisors is an integer number (1585659296).

Almost surely, 2^12075405309 is an apocalyptic number.

It is an amenable number.

12075405309 is a deficient number, since it is larger than the sum of its proper divisors (6952506243).

12075405309 is a wasteful number, since it uses less digits than its factorization.

12075405309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121973808 (or 121973805 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 12075405309 in words is "twelve billion, seventy-five million, four hundred five thousand, three hundred nine".