12782010447 has 6 divisors (see below), whose sum is σ = 18462903992. Its totient is φ = 8521340292.

The previous prime is 12782010433. The next prime is 12782010463. The reversal of 12782010447 is 74401028721.

12782010447 is a `hidden beast` number, since 1 + 2 + 7 + 8 + 201 + 0 + 447 = 666.

It is not a de Polignac number, because 12782010447 - 2⁶ = 12782010383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12782010247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710111683 + ... + 710111700.

Almost surely, 2^12782010447 is an apocalyptic number.

12782010447 is a deficient number, since it is larger than the sum of its proper divisors (5680893545).

12782010447 is a wasteful number, since it uses less digits than its factorization.

12782010447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420223389 (or 1420223386 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 12782010447 in words is "twelve billion, seven hundred eighty-two million, ten thousand, four hundred forty-seven".