12512786387 has 2 divisors, whose sum is σ = 12512786388. Its totient is φ = 12512786386.

The previous prime is 12512786383. The next prime is 12512786417. The reversal of 12512786387 is 78368721521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12512786387 - 2² = 12512786383 is a prime.

It is not a weakly prime, because it can be changed into another prime (12512786381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256393193 + 6256393194.

It is an arithmetic number, because the mean of its divisors is an integer number (6256393194).

Almost surely, 2^12512786387 is an apocalyptic number.

12512786387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512786387 is an equidigital number, since it uses as much as digits as its factorization.

12512786387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 50.

The spelling of 12512786387 in words is "twelve billion, five hundred twelve million, seven hundred eighty-six thousand, three hundred eighty-seven".