12745320384 has 56 divisors (see below), whose sum is σ = 35496845440. Its totient is φ = 4024836864.

The previous prime is 12745320373. The next prime is 12745320397. The reversal of 12745320384 is 48302354721.

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 7 ways as a sum of consecutive naturals, for example, 1743244 + ... + 1750539.

It is an arithmetic number, because the mean of its divisors is an integer number (633872240).

Almost surely, 2^12745320384 is an apocalyptic number.

It is an amenable number.

12745320384 is an abundant number, since it is smaller than the sum of its proper divisors (22751525056).

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

12745320384 is a wasteful number, since it uses less digits than its factorization.

12745320384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493817 (or 3493807 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 12745320384 in words is "twelve billion, seven hundred forty-five million, three hundred twenty thousand, three hundred eighty-four".