12049323579 has 24 divisors (see below), whose sum is σ = 17554447872. Its totient is φ = 7963866240.

The previous prime is 12049323553. The next prime is 12049323599. The reversal of 12049323579 is 97532394021.

12049323579 is a `hidden beast` number, since 1 + 2 + 0 + 49 + 32 + 3 + 579 = 666.

12049323579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12049323579 - 2¹³ = 12049315387 is a prime.

It is a super-2 number, since 2×12049323579² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12049323509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006342 + ... + 1018244.

It is an arithmetic number, because the mean of its divisors is an integer number (731435328).

Almost surely, 2^12049323579 is an apocalyptic number.

12049323579 is a deficient number, since it is larger than the sum of its proper divisors (5505124293).

12049323579 is a wasteful number, since it uses less digits than its factorization.

12049323579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12867 (or 12864 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 12049323579 in words is "twelve billion, forty-nine million, three hundred twenty-three thousand, five hundred seventy-nine".