12740643412 has 12 divisors (see below), whose sum is σ = 25481286880. Its totient is φ = 5460275736.

The previous prime is 12740643379. The next prime is 12740643463. The reversal of 12740643412 is 21434604721.

12740643412 is an admirable number.

It is a congruent number.

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, 227511462 + ... + 227511517.

Almost surely, 2^12740643412 is an apocalyptic number.

It is an amenable number.

12740643412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12740643412 is a wasteful number, since it uses less digits than its factorization.

12740643412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455022990 (or 455022988 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 12740643412 in words is "twelve billion, seven hundred forty million, six hundred forty-three thousand, four hundred twelve".