12449816535 has 64 divisors (see below), whose sum is σ = 22194708480. Its totient is φ = 5917847040.

The previous prime is 12449816503. The next prime is 12449816539. The reversal of 12449816535 is 53561894421.

It is not a de Polignac number, because 12449816535 - 2⁵ = 12449816503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449816539) 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 63 ways as a sum of consecutive naturals, for example, 2941801 + ... + 2946029.

It is an arithmetic number, because the mean of its divisors is an integer number (346792320).

Almost surely, 2^12449816535 is an apocalyptic number.

12449816535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12449816535 is a deficient number, since it is larger than the sum of its proper divisors (9744891945).

12449816535 is a wasteful number, since it uses less digits than its factorization.

12449816535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768.

The product of its digits is 1036800, while the sum is 48.

The spelling of 12449816535 in words is "twelve billion, four hundred forty-nine million, eight hundred sixteen thousand, five hundred thirty-five".