12528003730 has 16 divisors (see below), whose sum is σ = 24600443904. Its totient is φ = 4555637680.

The previous prime is 12528003721. The next prime is 12528003731. The reversal of 12528003730 is 3730082521.

12528003730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12528003692 and 12528003701.

It is not an unprimeable number, because it can be changed into a prime (12528003731) 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 in 7 ways as a sum of consecutive naturals, for example, 56945362 + ... + 56945581.

It is an arithmetic number, because the mean of its divisors is an integer number (1537527744).

Almost surely, 2^12528003730 is an apocalyptic number.

12528003730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12528003730 is a deficient number, since it is larger than the sum of its proper divisors (12072440174).

12528003730 is a wasteful number, since it uses less digits than its factorization.

12528003730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113890961.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 12528003730 in words is "twelve billion, five hundred twenty-eight million, three thousand, seven hundred thirty".