12449620503 has 24 divisors (see below), whose sum is σ = 18326131200. Its totient is φ = 8141873424.

The previous prime is 12449620499. The next prime is 12449620541. The reversal of 12449620503 is 30502694421.

It is a happy number.

12449620503 is a `hidden beast` number, since 1 + 2 + 44 + 96 + 20 + 503 = 666.

It is not a de Polignac number, because 12449620503 - 2² = 12449620499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449622503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229876 + ... + 278822.

It is an arithmetic number, because the mean of its divisors is an integer number (763588800).

Almost surely, 2^12449620503 is an apocalyptic number.

12449620503 is a deficient number, since it is larger than the sum of its proper divisors (5876510697).

12449620503 is a wasteful number, since it uses less digits than its factorization.

12449620503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49491 (or 49488 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12449620503 in words is "twelve billion, four hundred forty-nine million, six hundred twenty thousand, five hundred three".