12887273017 has 2 divisors, whose sum is σ = 12887273018. Its totient is φ = 12887273016.

The previous prime is 12887272997. The next prime is 12887273033. The reversal of 12887273017 is 71037278821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9022910121 + 3864362896 = 94989^2 + 62164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12887273017 is a prime.

It is not a weakly prime, because it can be changed into another prime (12887273117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443636508 + 6443636509.

It is an arithmetic number, because the mean of its divisors is an integer number (6443636509).

Almost surely, 2^12887273017 is an apocalyptic number.

It is an amenable number.

12887273017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12887273017 is an equidigital number, since it uses as much as digits as its factorization.

12887273017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 12887273017 in words is "twelve billion, eight hundred eighty-seven million, two hundred seventy-three thousand, seventeen".