12724322687 has 2 divisors, whose sum is σ = 12724322688. Its totient is φ = 12724322686.

The previous prime is 12724322671. The next prime is 12724322701. The reversal of 12724322687 is 78622342721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12724322687 - 2⁴ = 12724322671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12924322687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6362161343 + 6362161344.

It is an arithmetic number, because the mean of its divisors is an integer number (6362161344).

Almost surely, 2^12724322687 is an apocalyptic number.

12724322687 is a deficient number, since it is larger than the sum of its proper divisors (1).

12724322687 is an equidigital number, since it uses as much as digits as its factorization.

12724322687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 44.

The spelling of 12724322687 in words is "twelve billion, seven hundred twenty-four million, three hundred twenty-two thousand, six hundred eighty-seven".