12442513449 has 8 divisors (see below), whose sum is σ = 16637555200. Its totient is φ = 8271240336.

The previous prime is 12442513441. The next prime is 12442513453. The reversal of 12442513449 is 94431524421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12442513449 - 2³ = 12442513441 is a prime.

It is a super-2 number, since 2×12442513449² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12442513441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5940937 + ... + 5943030.

It is an arithmetic number, because the mean of its divisors is an integer number (2079694400).

Almost surely, 2^12442513449 is an apocalyptic number.

It is an amenable number.

12442513449 is a deficient number, since it is larger than the sum of its proper divisors (4195041751).

12442513449 is a wasteful number, since it uses less digits than its factorization.

12442513449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11884319.

The product of its digits is 138240, while the sum is 39.

The spelling of 12442513449 in words is "twelve billion, four hundred forty-two million, five hundred thirteen thousand, four hundred forty-nine".