12797487852 has 12 divisors (see below), whose sum is σ = 29860805016. Its totient is φ = 4265829280.

The previous prime is 12797487841. The next prime is 12797487889. The reversal of 12797487852 is 25878479721.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 533228649 + ... + 533228672.

It is an arithmetic number, because the mean of its divisors is an integer number (2488400418).

Almost surely, 2^12797487852 is an apocalyptic number.

12797487852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12797487852 is an abundant number, since it is smaller than the sum of its proper divisors (17063317164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12797487852 is a wasteful number, since it uses less digits than its factorization.

12797487852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066457328 (or 1066457326 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 60.

The spelling of 12797487852 in words is "twelve billion, seven hundred ninety-seven million, four hundred eighty-seven thousand, eight hundred fifty-two".