12449948577 has 12 divisors (see below), whose sum is σ = 18246206160. Its totient is φ = 7545423160.

The previous prime is 12449948551. The next prime is 12449948587. The reversal of 12449948577 is 77584994421.

It is not a de Polignac number, because 12449948577 - 2¹⁹ = 12449424289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12449948577.

It is not an unprimeable number, because it can be changed into a prime (12449948527) 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, 17148327 + ... + 17149052.

It is an arithmetic number, because the mean of its divisors is an integer number (1520517180).

Almost surely, 2^12449948577 is an apocalyptic number.

It is an amenable number.

12449948577 is a deficient number, since it is larger than the sum of its proper divisors (5796257583).

12449948577 is a wasteful number, since it uses less digits than its factorization.

12449948577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34297404 (or 34297393 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 60.

The spelling of 12449948577 in words is "twelve billion, four hundred forty-nine million, nine hundred forty-eight thousand, five hundred seventy-seven".