12928489208487 has 12 divisors (see below), whose sum is σ = 18674602098984. Its totient is φ = 8618938488720.

The previous prime is 12928489208461. The next prime is 12928489208497. The reversal of 12928489208487 is 78480298482921.

12928489208487 is a `hidden beast` number, since 1 + 29 + 28 + 4 + 89 + 20 + 8 + 487 = 666.

It is not a de Polignac number, because 12928489208487 - 2⁶ = 12928489208423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12928489208407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2991564 + ... + 5899697.

It is an arithmetic number, because the mean of its divisors is an integer number (1556216841582).

Almost surely, 2^{12928489208487} is an apocalyptic number.

12928489208487 is a deficient number, since it is larger than the sum of its proper divisors (5746112890497).

12928489208487 is a wasteful number, since it uses less digits than its factorization.

12928489208487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052830 (or 9052827 counting only the distinct ones).

The product of its (nonzero) digits is 297271296, while the sum is 72.

The spelling of 12928489208487 in words is "twelve trillion, nine hundred twenty-eight billion, four hundred eighty-nine million, two hundred eight thousand, four hundred eighty-seven".