12449374917 has 16 divisors (see below), whose sum is σ = 18973348992. Its totient is φ = 7112851200.

The previous prime is 12449374901. The next prime is 12449374943. The reversal of 12449374917 is 71947394421.

It is not a de Polignac number, because 12449374917 - 2⁴ = 12449374901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12449374917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449374117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109417 + ... + 192017.

It is an arithmetic number, because the mean of its divisors is an integer number (1185834312).

Almost surely, 2^12449374917 is an apocalyptic number.

It is an amenable number.

12449374917 is a deficient number, since it is larger than the sum of its proper divisors (6523974075).

12449374917 is an equidigital number, since it uses as much as digits as its factorization.

12449374917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89788.

The product of its digits is 1524096, while the sum is 51.

The spelling of 12449374917 in words is "twelve billion, four hundred forty-nine million, three hundred seventy-four thousand, nine hundred seventeen".