12821496208 has 40 divisors (see below), whose sum is σ = 24948304992. Its totient is φ = 6383290368.

The previous prime is 12821496199. The next prime is 12821496209. The reversal of 12821496208 is 80269412821.

It is not an unprimeable number, because it can be changed into a prime (12821496209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4085616 + ... + 4088752.

Almost surely, 2^12821496208 is an apocalyptic number.

It is an amenable number.

12821496208 is a deficient number, since it is larger than the sum of its proper divisors (12126808784).

12821496208 is a wasteful number, since it uses less digits than its factorization.

12821496208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159 (or 4153 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

It can be divided in two parts, 128214 and 96208, that added together give a palindrome (224422).

The spelling of 12821496208 in words is "twelve billion, eight hundred twenty-one million, four hundred ninety-six thousand, two hundred eight".