12528257707 has 16 divisors (see below), whose sum is σ = 14583578112. Its totient is φ = 10540474560.

The previous prime is 12528257641. The next prime is 12528257741. The reversal of 12528257707 is 70775282521.

It is not a de Polignac number, because 12528257707 - 2¹¹ = 12528255659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12528257767) 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 in 15 ways as a sum of consecutive naturals, for example, 84258 + ... + 179320.

It is an arithmetic number, because the mean of its divisors is an integer number (911473632).

Almost surely, 2^12528257707 is an apocalyptic number.

12528257707 is a deficient number, since it is larger than the sum of its proper divisors (2055320405).

12528257707 is an equidigital number, since it uses as much as digits as its factorization.

12528257707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95418.

The product of its (nonzero) digits is 548800, while the sum is 46.

The spelling of 12528257707 in words is "twelve billion, five hundred twenty-eight million, two hundred fifty-seven thousand, seven hundred seven".