12765012487 has 2 divisors, whose sum is σ = 12765012488. Its totient is φ = 12765012486.

The previous prime is 12765012467. The next prime is 12765012503. The reversal of 12765012487 is 78421056721.

12765012487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12765012487 - 2¹⁵ = 12764979719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12765012467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6382506243 + 6382506244.

It is an arithmetic number, because the mean of its divisors is an integer number (6382506244).

Almost surely, 2^12765012487 is an apocalyptic number.

12765012487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12765012487 is an equidigital number, since it uses as much as digits as its factorization.

12765012487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 12765012487 in words is "twelve billion, seven hundred sixty-five million, twelve thousand, four hundred eighty-seven".