12872361587 has 2 divisors, whose sum is σ = 12872361588. Its totient is φ = 12872361586.

The previous prime is 12872361577. The next prime is 12872361617. The reversal of 12872361587 is 78516327821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12872361587 - 2⁸ = 12872361331 is a prime.

It is not a weakly prime, because it can be changed into another prime (12872361577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436180793 + 6436180794.

It is an arithmetic number, because the mean of its divisors is an integer number (6436180794).

Almost surely, 2^12872361587 is an apocalyptic number.

12872361587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12872361587 is an equidigital number, since it uses as much as digits as its factorization.

12872361587 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 12872361587 in words is "twelve billion, eight hundred seventy-two million, three hundred sixty-one thousand, five hundred eighty-seven".