12712197687 has 32 divisors (see below), whose sum is σ = 19650470400. Its totient is φ = 7160050560.

The previous prime is 12712197679. The next prime is 12712197697. The reversal of 12712197687 is 78679121721.

It is not a de Polignac number, because 12712197687 - 2³ = 12712197679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712197607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394393 + ... + 425405.

It is an arithmetic number, because the mean of its divisors is an integer number (614077200).

Almost surely, 2^12712197687 is an apocalyptic number.

12712197687 is a deficient number, since it is larger than the sum of its proper divisors (6938272713).

12712197687 is a wasteful number, since it uses less digits than its factorization.

12712197687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31303.

The product of its digits is 592704, while the sum is 51.

The spelling of 12712197687 in words is "twelve billion, seven hundred twelve million, one hundred ninety-seven thousand, six hundred eighty-seven".