12420452852 has 12 divisors (see below), whose sum is σ = 21744371040. Its totient is φ = 6207775416.

The previous prime is 12420452819. The next prime is 12420452857. The reversal of 12420452852 is 25825402421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420452857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601328 + ... + 621639.

It is an arithmetic number, because the mean of its divisors is an integer number (1812030920).

Almost surely, 2^12420452852 is an apocalyptic number.

It is an amenable number.

12420452852 is a deficient number, since it is larger than the sum of its proper divisors (9323918188).

12420452852 is a wasteful number, since it uses less digits than its factorization.

12420452852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225510 (or 1225508 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

The spelling of 12420452852 in words is "twelve billion, four hundred twenty million, four hundred fifty-two thousand, eight hundred fifty-two".