12449873241 has 27 divisors (see below), whose sum is σ = 19479687357. Its totient is φ = 7658782560.

The previous prime is 12449873209. The next prime is 12449873269. The reversal of 12449873241 is 14237894421.

The square root of 12449873241 is 111579.

It is a perfect power (a square), and thus also a powerful number.

12449873241 is a `hidden beast` number, since 1 + 244 + 9 + 87 + 324 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1318779225 + 11131094016 = 36315^2 + 105504^2 .

It is not a de Polignac number, because 12449873241 - 2⁵ = 12449873209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12449873281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4350151 + ... + 4353011.

Almost surely, 2^12449873241 is an apocalyptic number.

12449873241 is the 111579-th square number.

12449873241 is the 55790-th centered octagonal number.

It is an amenable number.

12449873241 is a deficient number, since it is larger than the sum of its proper divisors (7029814116).

12449873241 is an frugal number, since it uses more digits than its factorization.

12449873241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754 (or 2877 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 12449873241 in words is "twelve billion, four hundred forty-nine million, eight hundred seventy-three thousand, two hundred forty-one".