12946887287 has 2 divisors, whose sum is σ = 12946887288. Its totient is φ = 12946887286.

The previous prime is 12946887221. The next prime is 12946887313. The reversal of 12946887287 is 78278864921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12946887287 - 2¹⁰ = 12946886263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12946887787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6473443643 + 6473443644.

It is an arithmetic number, because the mean of its divisors is an integer number (6473443644).

Almost surely, 2^12946887287 is an apocalyptic number.

12946887287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12946887287 is an equidigital number, since it uses as much as digits as its factorization.

12946887287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21676032, while the sum is 62.

The spelling of 12946887287 in words is "twelve billion, nine hundred forty-six million, eight hundred eighty-seven thousand, two hundred eighty-seven".