12449486309 has 8 divisors (see below), whose sum is σ = 13437005400. Its totient is φ = 11466233856.

The previous prime is 12449486293. The next prime is 12449486321. The reversal of 12449486309 is 90368494421.

It can be written as a sum of positive squares in 4 ways, for example, as 1447574209 + 11001912100 = 38047^2 + 104890^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12449486309 - 2⁴ = 12449486293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449486389) 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, 1060592 + ... + 1072265.

It is an arithmetic number, because the mean of its divisors is an integer number (1679625675).

Almost surely, 2^12449486309 is an apocalyptic number.

It is an amenable number.

12449486309 is a deficient number, since it is larger than the sum of its proper divisors (987519091).

12449486309 is a wasteful number, since it uses less digits than its factorization.

12449486309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133319.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 12449486309 in words is "twelve billion, four hundred forty-nine million, four hundred eighty-six thousand, three hundred nine".