12641324512 has 24 divisors (see below), whose sum is σ = 24917973192. Its totient is φ = 6312950400.

The previous prime is 12641324471. The next prime is 12641324519. The reversal of 12641324512 is 21542314621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641324519) 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 3 ways as a sum of consecutive naturals, for example, 214314 + ... + 266857.

It is an arithmetic number, because the mean of its divisors is an integer number (1038248883).

Almost surely, 2^12641324512 is an apocalyptic number.

It is an amenable number.

12641324512 is a deficient number, since it is larger than the sum of its proper divisors (12276648680).

12641324512 is an equidigital number, since it uses as much as digits as its factorization.

12641324512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482002 (or 481994 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The spelling of 12641324512 in words is "twelve billion, six hundred forty-one million, three hundred twenty-four thousand, five hundred twelve".