12528637071187 has 2 divisors, whose sum is σ = 12528637071188. Its totient is φ = 12528637071186.

The previous prime is 12528637071157. The next prime is 12528637071227. The reversal of 12528637071187 is 78117073682521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12528637071187 - 2⁴³ = 3732544048979 is a prime.

It is not a weakly prime, because it can be changed into another prime (12528637071107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6264318535593 + 6264318535594.

It is an arithmetic number, because the mean of its divisors is an integer number (6264318535594).

Almost surely, 2^{12528637071187} is an apocalyptic number.

12528637071187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12528637071187 is an equidigital number, since it uses as much as digits as its factorization.

12528637071187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7902720, while the sum is 58.

The spelling of 12528637071187 in words is "twelve trillion, five hundred twenty-eight billion, six hundred thirty-seven million, seventy-one thousand, one hundred eighty-seven".